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小木虫论坛-学术科研互动平台 » 计算模拟区 » 仿真模拟 » ANSYS & ABAQUS » 【求助】如何利用ansys模拟多孔材料热传递（包括热对流和热传导）
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tmw1987

铁杆木虫 (正式写手)

[交流] 【求助】如何利用ansys模拟多孔材料热传递（包括热对流和热传导）

各位大侠：

     如何利用ansys模拟多孔材料热传递的温升方程（包括热对流和热传导），多孔材料内部是由纤维和空气组成，在加热过程中空气是自然对流传热的。可否用ansys来模拟多孔材料的热传递的温升情况！！！
   万岁！！！
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1楼 2009-12-17 19:05:58
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warmwormdk

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nono2009(金币+3,VIP+0):辛苦了！ 12-20 16:06
Element Dimens. Shape or Characteristic DOFs
PLANE35 2-D Triangle, 6-node Temperature (at each node)
PLANE55 2-D Quadrilateral, 4-node Temperature (at each node)
PLANE75 2-D Harmonic, 4-node Temperature (at each node)
PLANE77 2-D Quadrilateral, 8-node Temperature (at each node)
PLANE78 2-D Harmonic, 8-node Temperature (at each node)

Table 2.2  3-D Solid Elements

Element Dimens. Shape or Characteristic DOFs
SOLID70 3-D Brick, 8-node Temperature (at each node)
SOLID87 3-D Tetrahedron, 10-node Temperature (at each node)
SOLID90 3-D Brick, 20-node Temperature (at each node)

Table 2.3  Radiation Link Elements

Element Dimens. Shape or Characteristic DOFs
LINK31 2-D or 3-D Line, 2-node Temperature (at each node)

Table 2.4  Conducting Bar Elements

Element Dimens. Shape or Characteristic DOFs
LINK32 2-D Line, 2-node Temperature (at each node)
LINK33 3-D Line, 2-node Temperature (at each node)

Table 2.5  Convection Link Elements

Element Dimens. Shape or Characteristic DOFs
LINK34 3-D Line, 2-node Temperature (at each node)

Table 2.6  Shell Elements

Element Dimens. Shape or Characteristic DOFs
SHELL57 3-D Quadrilateral, 4-node Temperature (at each node)
SHELL131 3-D Quadrilateral, 4-node Multiple temperatures (at each node)
SHELL132 3-D Quadrilateral, 8-node Multiple temperatures (at each node)

Table 2.7  Coupled-Field Elements

Element Dimens. Shape or Characteristic DOFs
PLANE13 2-D Thermal-structural, 4-node Temperature, structural displacement, electric potential, magnetic vector potential
FLUID116 3-D Thermal-fluid, 2-node or 4-node Temperature, pressure
SOLID5 3-D Thermal-structural and thermal-electric, 8-node Temperature, structural displacement, electric potential, and magnetic scalar potential
SOLID98 3-D Thermal-structural and thermal-electric, 10-node Temperature, structural displacement, electric potential, magnetic vector potential
PLANE67 2-D Thermal-electric, 4-node Temperature, electric potential
LINK68 3-D Thermal-electric, 2-node Temperature, electric potential
SOLID69 3-D Thermal-electric, 8-node Temperature, electric potential
SHELL157 3-D Thermal-electric, 4-node Temperature, electric potential
TARGE169 2-D Target segment element Temperature, structural displacement, electric potential
TARGE170 3-D Target segment element Temperature, structural displacement, electric potential
CONTA171 2-D Surface-to-surface contact element, 2-node Temperature, structural displacement, electric potential
CONTA172 2-D Surface-to-surface contact element, 3-node Temperature, structural displacement, electric potential
CONTA173 3-D Surface-to-surface contact element, 4-node Temperature, structural displacement, electric potential
CONTA174 3-D Surface-to-surface contact element, 8-node Temperature, structural displacement, electric potential
CONTA175 2-D/3-D Node-to-surface contact element, 1 node Temperature, structural displacement, electric potential
PLANE223 2-D Thermal-structural, thermal-electric, structural-thermoelectric, and thermal-piezoelectric, 8-node Temperature, structural displacement, electric potential
SOLID226 3-D Thermal-structural, thermal-electric, structural-thermoelectric, and thermal-piezoelectric, 20-node Temperature, structural displacement, electric potential
SOLID227 3-D Thermal-structural, thermal-electric, structural-thermoelectric, and thermal-piezoelectric, 10-node Temperature, structural displacement, electric potential

Table 2.8  Specialty Elements

Element Dimens. Shape or Characteristic DOFs
MASS71 1-D, 2-D, or 3-D Mass, one-node Temperature
COMBIN37 1-D Control element, 4-node Temperature, structural displacement, rotation, pressure
SURF151 2-D Surface effect element, 2-node to 4-node Temperature
SURF152 3-D Surface effect element, 4-node to 9-node Temperature
MATRIX50 [1] Matrix or radiation matrix element, no fixed geometry [1]
INFIN9 [2 ] 2-D Infinite boundary, 2-node Temperature, magnetic vector potential
INFIN47 [2 ] 3-D Infinite boundary, 4-node Temperature, magnetic vector potential
INFIN110 [2 ] 2-D Infinite boundary, 4 or 8 nodes Temperature, magnetic vector potential, electric potential
INFIN111 [2 ] 3-D Infinite boundary, 8 or 20 nodes Temperature, magnetic scalar potential, magnetic vector potential, electric potential
COMBIN14 1-D, 2-D, or 3-D Combination element, 2-node Temperature, structural displacement, rotation, pressure
COMBIN39 1-D Combination element, 2-node Temperature, structural displacement, rotation, pressure
COMBIN40 1-D Combination element, 2-node Temperature, structural displacement, rotation, pressure
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学而不思则罔，思而不学则殆
8楼2009-12-20 14:39:24
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warmwormdk

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nono2009(金币+2,VIP+0):专家上任。辛苦了！ 12-17 22:41
tmw1987(金币+1,VIP+0): 12-19 21:55
这个可以做，只要你确定好了绝热界面和对流界面就可以对其进行模拟
要用到瞬态热分析，建议看看热分析基础
再交流…
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学而不思则罔，思而不学则殆
2楼2009-12-17 22:24:49
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tmw1987

铁杆木虫 (正式写手)
引用回帖:
Originally posted by warmwormdk at 2009-12-17 22:24:
这个可以做，只要你确定好了绝热界面和对流界面就可以对其进行模拟
要用到瞬态热分析，建议看看热分析基础
再交流…

非常感谢，ansys在建立模型的时候如何建立一个内部即包括固相的热传导和气相的热对流的模型进行网格划分，望指明！
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3楼2009-12-19 21:52:42
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tmw1987

铁杆木虫 (正式写手)
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nono2009(金币+1,VIP+0):鼓励新虫交流！必要的话，可以PM以提高交流效率。 12-20 11:56
引用回帖:
Originally posted by warmwormdk at 2009-12-17 22:24:
这个可以做，只要你确定好了绝热界面和对流界面就可以对其进行模拟
要用到瞬态热分析，建议看看热分析基础
再交流…

对于您对我求助的回答，我相信您是此领域的专家。我学习ansys热分析已经有一段时间，但是选取的单元（solide 90）和建立的模型都是连续介质，而纺织材料实际上是多孔材料，在瞬态条件下热传导和热对流共同存在的。众所周知，ansys模拟问题分为三大步：1，前处理，建立模型和划分王洲；2，施加载荷；3，后处理，分析结果。您提的宝贵意见是针对第二步的，我现在首先对于选取什么样的单元（element）和建立什么样的模型还是不了解的。
    希望您能够指明第一步，选取什么样的单元和建立合适的模型。
    非常感谢！
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4楼2009-12-20 11:20:05
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