*HEADING
 EC36AFAD: AC3D6 ELEMENTS
 Acoustic test - 1D Problem, SS-DIRECT.
 A 4m long tube; from left to right,
 a sound source, 3m is air, then 1m of a highly
 absorbent material, followed by a rigid
 termination. 
*PREPRINT,ECHO=NO,HISTORY=NO,MODEL=NO
*RESTART,WRITE
***********************************************************
**
**
**   Mesh Generation
**
*NODE, Nset=ODB_NSET
    1, 0, 0,  0
  401, 4, 0,  0
  501, 0, 0, -2e-2
  901, 4, 0, -2e-2
 1001, 0, 2e-2,  0
 1401, 4, 2e-2,  0
 1501, 0, 2e-2, -2e-2
 1901, 4, 2e-2, -2e-2
*NGEN,NSET=ALL
    1,401
  501,901
 1001,1401
 1501,1901
*NSET,NSET=QA_TEST,GENERATE
 1,401,10
*NSET,NSET=LOAD
 1,1001,1501,501
*ELEMENT,TYPE=AC3D6
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  338,  170, 1169, 1170,  670, 1669, 1670,
  339,  170, 1170,  171,  670, 1670,  671,
  340,  171, 1170, 1171,  671, 1670, 1671,
  341,  171, 1171,  172,  671, 1671,  672,
  342,  172, 1171, 1172,  672, 1671, 1672,
  343,  172, 1172,  173,  672, 1672,  673,
  344,  173, 1172, 1173,  673, 1672, 1673,
  345,  173, 1173,  174,  673, 1673,  674,
  346,  174, 1173, 1174,  674, 1673, 1674,
  347,  174, 1174,  175,  674, 1674,  675,
  348,  175, 1174, 1175,  675, 1674, 1675,
  349,  175, 1175,  176,  675, 1675,  676,
  350,  176, 1175, 1176,  676, 1675, 1676,
  351,  176, 1176,  177,  676, 1676,  677,
  352,  177, 1176, 1177,  677, 1676, 1677,
  353,  177, 1177,  178,  677, 1677,  678,
  354,  178, 1177, 1178,  678, 1677, 1678,
  355,  178, 1178,  179,  678, 1678,  679,
  356,  179, 1178, 1179,  679, 1678, 1679,
  357,  179, 1179,  180,  679, 1679,  680,
  358,  180, 1179, 1180,  680, 1679, 1680,
  359,  180, 1180,  181,  680, 1680,  681,
  360,  181, 1180, 1181,  681, 1680, 1681,
  361,  181, 1181,  182,  681, 1681,  682,
  362,  182, 1181, 1182,  682, 1681, 1682,
  363,  182, 1182,  183,  682, 1682,  683,
  364,  183, 1182, 1183,  683, 1682, 1683,
  365,  183, 1183,  184,  683, 1683,  684,
  366,  184, 1183, 1184,  684, 1683, 1684,
  367,  184, 1184,  185,  684, 1684,  685,
  368,  185, 1184, 1185,  685, 1684, 1685,
  369,  185, 1185,  186,  685, 1685,  686,
  370,  186, 1185, 1186,  686, 1685, 1686,
  371,  186, 1186,  187,  686, 1686,  687,
  372,  187, 1186, 1187,  687, 1686, 1687,
  373,  187, 1187,  188,  687, 1687,  688,
  374,  188, 1187, 1188,  688, 1687, 1688,
  375,  188, 1188,  189,  688, 1688,  689,
  376,  189, 1188, 1189,  689, 1688, 1689,
  377,  189, 1189,  190,  689, 1689,  690,
  378,  190, 1189, 1190,  690, 1689, 1690,
  379,  190, 1190,  191,  690, 1690,  691,
  380,  191, 1190, 1191,  691, 1690, 1691,
  381,  191, 1191,  192,  691, 1691,  692,
  382,  192, 1191, 1192,  692, 1691, 1692,
  383,  192, 1192,  193,  692, 1692,  693,
  384,  193, 1192, 1193,  693, 1692, 1693,
  385,  193, 1193,  194,  693, 1693,  694,
  386,  194, 1193, 1194,  694, 1693, 1694,
  387,  194, 1194,  195,  694, 1694,  695,
  388,  195, 1194, 1195,  695, 1694, 1695,
  389,  195, 1195,  196,  695, 1695,  696,
  390,  196, 1195, 1196,  696, 1695, 1696,
  391,  196, 1196,  197,  696, 1696,  697,
  392,  197, 1196, 1197,  697, 1696, 1697,
  393,  197, 1197,  198,  697, 1697,  698,
  394,  198, 1197, 1198,  698, 1697, 1698,
  395,  198, 1198,  199,  698, 1698,  699,
  396,  199, 1198, 1199,  699, 1698, 1699,
  397,  199, 1199,  200,  699, 1699,  700,
  398,  200, 1199, 1200,  700, 1699, 1700,
  399,  200, 1200,  201,  700, 1700,  701,
  400,  201, 1200, 1201,  701, 1700, 1701,
  401,  201, 1201,  202,  701, 1701,  702,
  402,  202, 1201, 1202,  702, 1701, 1702,
  403,  202, 1202,  203,  702, 1702,  703,
  404,  203, 1202, 1203,  703, 1702, 1703,
  405,  203, 1203,  204,  703, 1703,  704,
  406,  204, 1203, 1204,  704, 1703, 1704,
  407,  204, 1204,  205,  704, 1704,  705,
  408,  205, 1204, 1205,  705, 1704, 1705,
  409,  205, 1205,  206,  705, 1705,  706,
  410,  206, 1205, 1206,  706, 1705, 1706,
  411,  206, 1206,  207,  706, 1706,  707,
  412,  207, 1206, 1207,  707, 1706, 1707,
  413,  207, 1207,  208,  707, 1707,  708,
  414,  208, 1207, 1208,  708, 1707, 1708,
  415,  208, 1208,  209,  708, 1708,  709,
  416,  209, 1208, 1209,  709, 1708, 1709,
  417,  209, 1209,  210,  709, 1709,  710,
  418,  210, 1209, 1210,  710, 1709, 1710,
  419,  210, 1210,  211,  710, 1710,  711,
  420,  211, 1210, 1211,  711, 1710, 1711,
  421,  211, 1211,  212,  711, 1711,  712,
  422,  212, 1211, 1212,  712, 1711, 1712,
  423,  212, 1212,  213,  712, 1712,  713,
  424,  213, 1212, 1213,  713, 1712, 1713,
  425,  213, 1213,  214,  713, 1713,  714,
  426,  214, 1213, 1214,  714, 1713, 1714,
  427,  214, 1214,  215,  714, 1714,  715,
  428,  215, 1214, 1215,  715, 1714, 1715,
  429,  215, 1215,  216,  715, 1715,  716,
  430,  216, 1215, 1216,  716, 1715, 1716,
  431,  216, 1216,  217,  716, 1716,  717,
  432,  217, 1216, 1217,  717, 1716, 1717,
  433,  217, 1217,  218,  717, 1717,  718,
  434,  218, 1217, 1218,  718, 1717, 1718,
  435,  218, 1218,  219,  718, 1718,  719,
  436,  219, 1218, 1219,  719, 1718, 1719,
  437,  219, 1219,  220,  719, 1719,  720,
  438,  220, 1219, 1220,  720, 1719, 1720,
  439,  220, 1220,  221,  720, 1720,  721,
  440,  221, 1220, 1221,  721, 1720, 1721,
  441,  221, 1221,  222,  721, 1721,  722,
  442,  222, 1221, 1222,  722, 1721, 1722,
  443,  222, 1222,  223,  722, 1722,  723,
  444,  223, 1222, 1223,  723, 1722, 1723,
  445,  223, 1223,  224,  723, 1723,  724,
  446,  224, 1223, 1224,  724, 1723, 1724,
  447,  224, 1224,  225,  724, 1724,  725,
  448,  225, 1224, 1225,  725, 1724, 1725,
  449,  225, 1225,  226,  725, 1725,  726,
  450,  226, 1225, 1226,  726, 1725, 1726,
  451,  226, 1226,  227,  726, 1726,  727,
  452,  227, 1226, 1227,  727, 1726, 1727,
  453,  227, 1227,  228,  727, 1727,  728,
  454,  228, 1227, 1228,  728, 1727, 1728,
  455,  228, 1228,  229,  728, 1728,  729,
  456,  229, 1228, 1229,  729, 1728, 1729,
  457,  229, 1229,  230,  729, 1729,  730,
  458,  230, 1229, 1230,  730, 1729, 1730,
  459,  230, 1230,  231,  730, 1730,  731,
  460,  231, 1230, 1231,  731, 1730, 1731,
  461,  231, 1231,  232,  731, 1731,  732,
  462,  232, 1231, 1232,  732, 1731, 1732,
  463,  232, 1232,  233,  732, 1732,  733,
  464,  233, 1232, 1233,  733, 1732, 1733,
  465,  233, 1233,  234,  733, 1733,  734,
  466,  234, 1233, 1234,  734, 1733, 1734,
  467,  234, 1234,  235,  734, 1734,  735,
  468,  235, 1234, 1235,  735, 1734, 1735,
  469,  235, 1235,  236,  735, 1735,  736,
  470,  236, 1235, 1236,  736, 1735, 1736,
  471,  236, 1236,  237,  736, 1736,  737,
  472,  237, 1236, 1237,  737, 1736, 1737,
  473,  237, 1237,  238,  737, 1737,  738,
  474,  238, 1237, 1238,  738, 1737, 1738,
  475,  238, 1238,  239,  738, 1738,  739,
  476,  239, 1238, 1239,  739, 1738, 1739,
  477,  239, 1239,  240,  739, 1739,  740,
  478,  240, 1239, 1240,  740, 1739, 1740,
  479,  240, 1240,  241,  740, 1740,  741,
  480,  241, 1240, 1241,  741, 1740, 1741,
  481,  241, 1241,  242,  741, 1741,  742,
  482,  242, 1241, 1242,  742, 1741, 1742,
  483,  242, 1242,  243,  742, 1742,  743,
  484,  243, 1242, 1243,  743, 1742, 1743,
  485,  243, 1243,  244,  743, 1743,  744,
  486,  244, 1243, 1244,  744, 1743, 1744,
  487,  244, 1244,  245,  744, 1744,  745,
  488,  245, 1244, 1245,  745, 1744, 1745,
  489,  245, 1245,  246,  745, 1745,  746,
  490,  246, 1245, 1246,  746, 1745, 1746,
  491,  246, 1246,  247,  746, 1746,  747,
  492,  247, 1246, 1247,  747, 1746, 1747,
  493,  247, 1247,  248,  747, 1747,  748,
  494,  248, 1247, 1248,  748, 1747, 1748,
  495,  248, 1248,  249,  748, 1748,  749,
  496,  249, 1248, 1249,  749, 1748, 1749,
  497,  249, 1249,  250,  749, 1749,  750,
  498,  250, 1249, 1250,  750, 1749, 1750,
  499,  250, 1250,  251,  750, 1750,  751,
  500,  251, 1250, 1251,  751, 1750, 1751,
  501,  251, 1251,  252,  751, 1751,  752,
  502,  252, 1251, 1252,  752, 1751, 1752,
  503,  252, 1252,  253,  752, 1752,  753,
  504,  253, 1252, 1253,  753, 1752, 1753,
  505,  253, 1253,  254,  753, 1753,  754,
  506,  254, 1253, 1254,  754, 1753, 1754,
  507,  254, 1254,  255,  754, 1754,  755,
  508,  255, 1254, 1255,  755, 1754, 1755,
  509,  255, 1255,  256,  755, 1755,  756,
  510,  256, 1255, 1256,  756, 1755, 1756,
  511,  256, 1256,  257,  756, 1756,  757,
  512,  257, 1256, 1257,  757, 1756, 1757,
  513,  257, 1257,  258,  757, 1757,  758,
  514,  258, 1257, 1258,  758, 1757, 1758,
  515,  258, 1258,  259,  758, 1758,  759,
  516,  259, 1258, 1259,  759, 1758, 1759,
  517,  259, 1259,  260,  759, 1759,  760,
  518,  260, 1259, 1260,  760, 1759, 1760,
  519,  260, 1260,  261,  760, 1760,  761,
  520,  261, 1260, 1261,  761, 1760, 1761,
  521,  261, 1261,  262,  761, 1761,  762,
  522,  262, 1261, 1262,  762, 1761, 1762,
  523,  262, 1262,  263,  762, 1762,  763,
  524,  263, 1262, 1263,  763, 1762, 1763,
  525,  263, 1263,  264,  763, 1763,  764,
  526,  264, 1263, 1264,  764, 1763, 1764,
  527,  264, 1264,  265,  764, 1764,  765,
  528,  265, 1264, 1265,  765, 1764, 1765,
  529,  265, 1265,  266,  765, 1765,  766,
  530,  266, 1265, 1266,  766, 1765, 1766,
  531,  266, 1266,  267,  766, 1766,  767,
  532,  267, 1266, 1267,  767, 1766, 1767,
  533,  267, 1267,  268,  767, 1767,  768,
  534,  268, 1267, 1268,  768, 1767, 1768,
  535,  268, 1268,  269,  768, 1768,  769,
  536,  269, 1268, 1269,  769, 1768, 1769,
  537,  269, 1269,  270,  769, 1769,  770,
  538,  270, 1269, 1270,  770, 1769, 1770,
  539,  270, 1270,  271,  770, 1770,  771,
  540,  271, 1270, 1271,  771, 1770, 1771,
  541,  271, 1271,  272,  771, 1771,  772,
  542,  272, 1271, 1272,  772, 1771, 1772,
  543,  272, 1272,  273,  772, 1772,  773,
  544,  273, 1272, 1273,  773, 1772, 1773,
  545,  273, 1273,  274,  773, 1773,  774,
  546,  274, 1273, 1274,  774, 1773, 1774,
  547,  274, 1274,  275,  774, 1774,  775,
  548,  275, 1274, 1275,  775, 1774, 1775,
  549,  275, 1275,  276,  775, 1775,  776,
  550,  276, 1275, 1276,  776, 1775, 1776,
  551,  276, 1276,  277,  776, 1776,  777,
  552,  277, 1276, 1277,  777, 1776, 1777,
  553,  277, 1277,  278,  777, 1777,  778,
  554,  278, 1277, 1278,  778, 1777, 1778,
  555,  278, 1278,  279,  778, 1778,  779,
  556,  279, 1278, 1279,  779, 1778, 1779,
  557,  279, 1279,  280,  779, 1779,  780,
  558,  280, 1279, 1280,  780, 1779, 1780,
  559,  280, 1280,  281,  780, 1780,  781,
  560,  281, 1280, 1281,  781, 1780, 1781,
  561,  281, 1281,  282,  781, 1781,  782,
  562,  282, 1281, 1282,  782, 1781, 1782,
  563,  282, 1282,  283,  782, 1782,  783,
  564,  283, 1282, 1283,  783, 1782, 1783,
  565,  283, 1283,  284,  783, 1783,  784,
  566,  284, 1283, 1284,  784, 1783, 1784,
  567,  284, 1284,  285,  784, 1784,  785,
  568,  285, 1284, 1285,  785, 1784, 1785,
  569,  285, 1285,  286,  785, 1785,  786,
  570,  286, 1285, 1286,  786, 1785, 1786,
  571,  286, 1286,  287,  786, 1786,  787,
  572,  287, 1286, 1287,  787, 1786, 1787,
  573,  287, 1287,  288,  787, 1787,  788,
  574,  288, 1287, 1288,  788, 1787, 1788,
  575,  288, 1288,  289,  788, 1788,  789,
  576,  289, 1288, 1289,  789, 1788, 1789,
  577,  289, 1289,  290,  789, 1789,  790,
  578,  290, 1289, 1290,  790, 1789, 1790,
  579,  290, 1290,  291,  790, 1790,  791,
  580,  291, 1290, 1291,  791, 1790, 1791,
  581,  291, 1291,  292,  791, 1791,  792,
  582,  292, 1291, 1292,  792, 1791, 1792,
  583,  292, 1292,  293,  792, 1792,  793,
  584,  293, 1292, 1293,  793, 1792, 1793,
  585,  293, 1293,  294,  793, 1793,  794,
  586,  294, 1293, 1294,  794, 1793, 1794,
  587,  294, 1294,  295,  794, 1794,  795,
  588,  295, 1294, 1295,  795, 1794, 1795,
  589,  295, 1295,  296,  795, 1795,  796,
  590,  296, 1295, 1296,  796, 1795, 1796,
  591,  296, 1296,  297,  796, 1796,  797,
  592,  297, 1296, 1297,  797, 1796, 1797,
  593,  297, 1297,  298,  797, 1797,  798,
  594,  298, 1297, 1298,  798, 1797, 1798,
  595,  298, 1298,  299,  798, 1798,  799,
  596,  299, 1298, 1299,  799, 1798, 1799,
  597,  299, 1299,  300,  799, 1799,  800,
  598,  300, 1299, 1300,  800, 1799, 1800,
  599,  300, 1300,  301,  800, 1800,  801,
  600,  301, 1300, 1301,  801, 1800, 1801,
  601,  301, 1301,  302,  801, 1801,  802,
  602,  302, 1301, 1302,  802, 1801, 1802,
  603,  302, 1302,  303,  802, 1802,  803,
  604,  303, 1302, 1303,  803, 1802, 1803,
  605,  303, 1303,  304,  803, 1803,  804,
  606,  304, 1303, 1304,  804, 1803, 1804,
  607,  304, 1304,  305,  804, 1804,  805,
  608,  305, 1304, 1305,  805, 1804, 1805,
  609,  305, 1305,  306,  805, 1805,  806,
  610,  306, 1305, 1306,  806, 1805, 1806,
  611,  306, 1306,  307,  806, 1806,  807,
  612,  307, 1306, 1307,  807, 1806, 1807,
  613,  307, 1307,  308,  807, 1807,  808,
  614,  308, 1307, 1308,  808, 1807, 1808,
  615,  308, 1308,  309,  808, 1808,  809,
  616,  309, 1308, 1309,  809, 1808, 1809,
  617,  309, 1309,  310,  809, 1809,  810,
  618,  310, 1309, 1310,  810, 1809, 1810,
  619,  310, 1310,  311,  810, 1810,  811,
  620,  311, 1310, 1311,  811, 1810, 1811,
  621,  311, 1311,  312,  811, 1811,  812,
  622,  312, 1311, 1312,  812, 1811, 1812,
  623,  312, 1312,  313,  812, 1812,  813,
  624,  313, 1312, 1313,  813, 1812, 1813,
  625,  313, 1313,  314,  813, 1813,  814,
  626,  314, 1313, 1314,  814, 1813, 1814,
  627,  314, 1314,  315,  814, 1814,  815,
  628,  315, 1314, 1315,  815, 1814, 1815,
  629,  315, 1315,  316,  815, 1815,  816,
  630,  316, 1315, 1316,  816, 1815, 1816,
  631,  316, 1316,  317,  816, 1816,  817,
  632,  317, 1316, 1317,  817, 1816, 1817,
  633,  317, 1317,  318,  817, 1817,  818,
  634,  318, 1317, 1318,  818, 1817, 1818,
  635,  318, 1318,  319,  818, 1818,  819,
  636,  319, 1318, 1319,  819, 1818, 1819,
  637,  319, 1319,  320,  819, 1819,  820,
  638,  320, 1319, 1320,  820, 1819, 1820,
  639,  320, 1320,  321,  820, 1820,  821,
  640,  321, 1320, 1321,  821, 1820, 1821,
  641,  321, 1321,  322,  821, 1821,  822,
  642,  322, 1321, 1322,  822, 1821, 1822,
  643,  322, 1322,  323,  822, 1822,  823,
  644,  323, 1322, 1323,  823, 1822, 1823,
  645,  323, 1323,  324,  823, 1823,  824,
  646,  324, 1323, 1324,  824, 1823, 1824,
  647,  324, 1324,  325,  824, 1824,  825,
  648,  325, 1324, 1325,  825, 1824, 1825,
  649,  325, 1325,  326,  825, 1825,  826,
  650,  326, 1325, 1326,  826, 1825, 1826,
  651,  326, 1326,  327,  826, 1826,  827,
  652,  327, 1326, 1327,  827, 1826, 1827,
  653,  327, 1327,  328,  827, 1827,  828,
  654,  328, 1327, 1328,  828, 1827, 1828,
  655,  328, 1328,  329,  828, 1828,  829,
  656,  329, 1328, 1329,  829, 1828, 1829,
  657,  329, 1329,  330,  829, 1829,  830,
  658,  330, 1329, 1330,  830, 1829, 1830,
  659,  330, 1330,  331,  830, 1830,  831,
  660,  331, 1330, 1331,  831, 1830, 1831,
  661,  331, 1331,  332,  831, 1831,  832,
  662,  332, 1331, 1332,  832, 1831, 1832,
  663,  332, 1332,  333,  832, 1832,  833,
  664,  333, 1332, 1333,  833, 1832, 1833,
  665,  333, 1333,  334,  833, 1833,  834,
  666,  334, 1333, 1334,  834, 1833, 1834,
  667,  334, 1334,  335,  834, 1834,  835,
  668,  335, 1334, 1335,  835, 1834, 1835,
  669,  335, 1335,  336,  835, 1835,  836,
  670,  336, 1335, 1336,  836, 1835, 1836,
  671,  336, 1336,  337,  836, 1836,  837,
  672,  337, 1336, 1337,  837, 1836, 1837,
  673,  337, 1337,  338,  837, 1837,  838,
  674,  338, 1337, 1338,  838, 1837, 1838,
  675,  338, 1338,  339,  838, 1838,  839,
  676,  339, 1338, 1339,  839, 1838, 1839,
  677,  339, 1339,  340,  839, 1839,  840,
  678,  340, 1339, 1340,  840, 1839, 1840,
  679,  340, 1340,  341,  840, 1840,  841,
  680,  341, 1340, 1341,  841, 1840, 1841,
  681,  341, 1341,  342,  841, 1841,  842,
  682,  342, 1341, 1342,  842, 1841, 1842,
  683,  342, 1342,  343,  842, 1842,  843,
  684,  343, 1342, 1343,  843, 1842, 1843,
  685,  343, 1343,  344,  843, 1843,  844,
  686,  344, 1343, 1344,  844, 1843, 1844,
  687,  344, 1344,  345,  844, 1844,  845,
  688,  345, 1344, 1345,  845, 1844, 1845,
  689,  345, 1345,  346,  845, 1845,  846,
  690,  346, 1345, 1346,  846, 1845, 1846,
  691,  346, 1346,  347,  846, 1846,  847,
  692,  347, 1346, 1347,  847, 1846, 1847,
  693,  347, 1347,  348,  847, 1847,  848,
  694,  348, 1347, 1348,  848, 1847, 1848,
  695,  348, 1348,  349,  848, 1848,  849,
  696,  349, 1348, 1349,  849, 1848, 1849,
  697,  349, 1349,  350,  849, 1849,  850,
  698,  350, 1349, 1350,  850, 1849, 1850,
  699,  350, 1350,  351,  850, 1850,  851,
  700,  351, 1350, 1351,  851, 1850, 1851,
  701,  351, 1351,  352,  851, 1851,  852,
  702,  352, 1351, 1352,  852, 1851, 1852,
  703,  352, 1352,  353,  852, 1852,  853,
  704,  353, 1352, 1353,  853, 1852, 1853,
  705,  353, 1353,  354,  853, 1853,  854,
  706,  354, 1353, 1354,  854, 1853, 1854,
  707,  354, 1354,  355,  854, 1854,  855,
  708,  355, 1354, 1355,  855, 1854, 1855,
  709,  355, 1355,  356,  855, 1855,  856,
  710,  356, 1355, 1356,  856, 1855, 1856,
  711,  356, 1356,  357,  856, 1856,  857,
  712,  357, 1356, 1357,  857, 1856, 1857,
  713,  357, 1357,  358,  857, 1857,  858,
  714,  358, 1357, 1358,  858, 1857, 1858,
  715,  358, 1358,  359,  858, 1858,  859,
  716,  359, 1358, 1359,  859, 1858, 1859,
  717,  359, 1359,  360,  859, 1859,  860,
  718,  360, 1359, 1360,  860, 1859, 1860,
  719,  360, 1360,  361,  860, 1860,  861,
  720,  361, 1360, 1361,  861, 1860, 1861,
  721,  361, 1361,  362,  861, 1861,  862,
  722,  362, 1361, 1362,  862, 1861, 1862,
  723,  362, 1362,  363,  862, 1862,  863,
  724,  363, 1362, 1363,  863, 1862, 1863,
  725,  363, 1363,  364,  863, 1863,  864,
  726,  364, 1363, 1364,  864, 1863, 1864,
  727,  364, 1364,  365,  864, 1864,  865,
  728,  365, 1364, 1365,  865, 1864, 1865,
  729,  365, 1365,  366,  865, 1865,  866,
  730,  366, 1365, 1366,  866, 1865, 1866,
  731,  366, 1366,  367,  866, 1866,  867,
  732,  367, 1366, 1367,  867, 1866, 1867,
  733,  367, 1367,  368,  867, 1867,  868,
  734,  368, 1367, 1368,  868, 1867, 1868,
  735,  368, 1368,  369,  868, 1868,  869,
  736,  369, 1368, 1369,  869, 1868, 1869,
  737,  369, 1369,  370,  869, 1869,  870,
  738,  370, 1369, 1370,  870, 1869, 1870,
  739,  370, 1370,  371,  870, 1870,  871,
  740,  371, 1370, 1371,  871, 1870, 1871,
  741,  371, 1371,  372,  871, 1871,  872,
  742,  372, 1371, 1372,  872, 1871, 1872,
  743,  372, 1372,  373,  872, 1872,  873,
  744,  373, 1372, 1373,  873, 1872, 1873,
  745,  373, 1373,  374,  873, 1873,  874,
  746,  374, 1373, 1374,  874, 1873, 1874,
  747,  374, 1374,  375,  874, 1874,  875,
  748,  375, 1374, 1375,  875, 1874, 1875,
  749,  375, 1375,  376,  875, 1875,  876,
  750,  376, 1375, 1376,  876, 1875, 1876,
  751,  376, 1376,  377,  876, 1876,  877,
  752,  377, 1376, 1377,  877, 1876, 1877,
  753,  377, 1377,  378,  877, 1877,  878,
  754,  378, 1377, 1378,  878, 1877, 1878,
  755,  378, 1378,  379,  878, 1878,  879,
  756,  379, 1378, 1379,  879, 1878, 1879,
  757,  379, 1379,  380,  879, 1879,  880,
  758,  380, 1379, 1380,  880, 1879, 1880,
  759,  380, 1380,  381,  880, 1880,  881,
  760,  381, 1380, 1381,  881, 1880, 1881,
  761,  381, 1381,  382,  881, 1881,  882,
  762,  382, 1381, 1382,  882, 1881, 1882,
  763,  382, 1382,  383,  882, 1882,  883,
  764,  383, 1382, 1383,  883, 1882, 1883,
  765,  383, 1383,  384,  883, 1883,  884,
  766,  384, 1383, 1384,  884, 1883, 1884,
  767,  384, 1384,  385,  884, 1884,  885,
  768,  385, 1384, 1385,  885, 1884, 1885,
  769,  385, 1385,  386,  885, 1885,  886,
  770,  386, 1385, 1386,  886, 1885, 1886,
  771,  386, 1386,  387,  886, 1886,  887,
  772,  387, 1386, 1387,  887, 1886, 1887,
  773,  387, 1387,  388,  887, 1887,  888,
  774,  388, 1387, 1388,  888, 1887, 1888,
  775,  388, 1388,  389,  888, 1888,  889,
  776,  389, 1388, 1389,  889, 1888, 1889,
  777,  389, 1389,  390,  889, 1889,  890,
  778,  390, 1389, 1390,  890, 1889, 1890,
  779,  390, 1390,  391,  890, 1890,  891,
  780,  391, 1390, 1391,  891, 1890, 1891,
  781,  391, 1391,  392,  891, 1891,  892,
  782,  392, 1391, 1392,  892, 1891, 1892,
  783,  392, 1392,  393,  892, 1892,  893,
  784,  393, 1392, 1393,  893, 1892, 1893,
  785,  393, 1393,  394,  893, 1893,  894,
  786,  394, 1393, 1394,  894, 1893, 1894,
  787,  394, 1394,  395,  894, 1894,  895,
  788,  395, 1394, 1395,  895, 1894, 1895,
  789,  395, 1395,  396,  895, 1895,  896,
  790,  396, 1395, 1396,  896, 1895, 1896,
  791,  396, 1396,  397,  896, 1896,  897,
  792,  397, 1396, 1397,  897, 1896, 1897,
  793,  397, 1397,  398,  897, 1897,  898,
  794,  398, 1397, 1398,  898, 1897, 1898,
  795,  398, 1398,  399,  898, 1898,  899,
  796,  399, 1398, 1399,  899, 1898, 1899,
  797,  399, 1399,  400,  899, 1899,  900,
  798,  400, 1399, 1400,  900, 1899, 1900,
  799,  400, 1400,  401,  900, 1900,  901,
  800,  401, 1400, 1401,  901, 1900, 1901,
*ELSET,ELSET=CHANNEL,generate
 1,600
*ELSET,ELSET=ABSORB,generate
  601,800
************************************************
**    ** ELEMENT PROPERTIES **
**
*SOLID SECTION,MATERIAL=AIR,ELSET=CHANNEL
*SOLID SECTION,MATERIAL=ABSORB,ELSET=ABSORB
**
**
*MATERIAL,NAME=AIR
*DENSITY
 1.21,
*ACOUSTIC MEDIUM,BULK MODULUS
 0.1424E6,
**
**
*MATERIAL,NAME=ABSORB
*DENSITY
 1.21,
*ACOUSTIC MEDIUM,BULK MODULUS
 0.1424E6,
*ACOUSTIC MEDIUM,VOLUMETRIC DRAG
 1e4,
**
**
**
*************************************************
**
*Elset,Elset=ODB_ESET
CHANNEL, ABSORB
**
**
*Nset, Nset=ODB_NSET
ODB_NSET, ALL, QA_TEST
**
**
*STEP
*STEADY STATE DYNAMICS,DIRECT,FREQUENCY SCALE=LINEAR
 10,1100,13,1
*CLOAD
 LOAD,8, -1E-2
*NODE PRINT, NSET=QA_TEST
 POR,PPOR,
*EL PRINT,FREQUENCY=0
*ENERGYPRINT
*OUTPUT,FIELD
*NODE OUTPUT,NSET=QA_TEST
 POR,
*ELEMENT OUTPUT
ACV,INTEN,GRADP,ENER,ELEN,ELEDEN
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=QA_TEST
 POR,
*ENERGY OUTPUT
ALLSE,ALLKE,ALLWK,ALLVD
*ENDSTEP
**
**
*STEP
***FREQUENCY,NORM=MASS,EIGENSOLVER=LANCZOS
*FREQUENCY,EIGENSOLVER=AMS
200,,300.
*OUTPUT,FIELD,FREQUENCY=999
*NODE OUTPUT
U,
*ELEMENT OUTPUT
S,
**50, , ,
*NODE PRINT,F=0
*EL PRINT,F=0
*OUTPUT,FIELD,Frequency=0
*END STEP
**
**
*STEP
***STEADY STATE DYNAMICS,SUBSPACE PROJECTION=EIGENFREQUENCY,FREQUENCY SCALE=LINEAR,INTERVAL=RANGE
*STEADY STATE DYNAMICS,FREQUENCY SCALE=LINEAR,INTERVAL=RANGE
 100,1100,3,1
**
** Prescribe outward acceleration of 100 at loaded nodes.
** The tributary area of each node is 1/100, so the
** outward volume acceleration is 1.
*CLOAD
 LOAD,8, -1E-2
**
*NODE PRINT, NSET=QA_TEST
 POR,PPOR,
*EL PRINT,FREQUENCY=0
*energyprint
*OUTPUT,FIELD,VARIABLE=PRESELECT,OP=ADD,FREQUENCY=9999
*OUTPUT,FIELD, OP=ADD
*NODE OUTPUT,NSET=QA_TEST
 POR,
*ELEMENT OUTPUT,ELSET=ABSORB
ACV,INTEN,GRADP
*OUTPUT,HISTORY
*NODE OUTPUT,NSET=QA_TEST
 POR,
*ENERGY OUTPUT
ALLSE,ALLKE,ALLWK,ALLVD
*ENDSTEP