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Heat Transfer Tips (12 entries)
 
22x Coupled-Field Elements [PDF]
  Sheldon Imaoka (ANSYS, Inc.)
  "The 22x direct coupled-field elements (PLANE223, SOLID226-227) provide a wide array of material behavior for multiphysics applications - these include piezoelectricity, piezoresistivity, thermoelasticity, and thermoelectricity. This memo hopes to introduce some of the pertinent features of these elements."
(Week 34, week of 06/11/06.)
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Average Rating: 8.9 (37 votes)  
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Beta Electrical Contact Features at 6.0 [ZIP]
  Sheldon Imaoka (ANSYS, Inc.)
  "This issue describes a beta feature at 6.0, which is electrical contact capability of 17x surface-to-surface contact elements. This new capability allows contact in thermal-electric and structural-thermal-electric problems."
(Week 13, week of 01/07/02.)
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Average Rating: 7.9 (28 votes)  
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Calculating effective Coefficient of Thermal Expansion [PDF]
  Bill Bulat (CSI)
  Tips on how to define coefficient of thermal expansion and converting that material data to format that ANSYS can use.
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Average Rating: 9.8 (44 votes)  
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Fast Nonlinear Transient Thermal Solver [PDF]
  (ANSYS, Inc.)
  Information on the fast nonlinear thermal solution method (THOPT), beta in 5.6 and documented in 5.7
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Average Rating: 10.0 (5 votes)  
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PDF file summarizing beta contact features at 5.6.1 [PDF]
  Sheldon Imaoka (CSI)
  Presentation on the thermal contact and fluid pressure capabilities of the surface-to-surface contact elements. This was written when these capabilities were beta at 5.6. Thermal capabilites are documented at 5.7.
Accompanying thermal contact example and fluid pressure example
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Average Rating: 10.0 (5 votes)  
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Radiation article in ANSYS Solutions Magazine [PDF]
  Dave Looman (ANSYS, Inc.)
  Overview of ANSYS's radiation capabilities, including a discussion on the radiosity solution method.
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Average Rating: 8.0 (10 votes)  
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Radiosity Solver [PDF]
  Sheldon Imaoka (CSI)
  Information on radiation capabilities of ANSYS, focusing on the radiosity solution method.
Accompanying input files 1, 2, 3 and 4
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Average Rating: 9.6 (13 votes)  
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Thermal contact overview [PDF]
  Yongyi Zhu (ANSYS, Inc.)
  Presentation on the thermal contact capabilities of the surface-to-surface contact elements, beta at 5.6.
Input file for pressure-dependent thermal conductance

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Average Rating: 9.7 (17 votes)  
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Thermal Surface Effect Elements Intro [PDF]
  Sheldon Imaoka (CSI)
  Introduction to thermal surface effect elements (SURF151/152).
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Average Rating: 10.0 (7 votes)  
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Thermal surface Effect Elements, General Overview
  Sheldon Imaoka (ANSYS, Inc.)
  An overview presentation and example workshop on thermal surface effect elements. This is an old presentation I did at ANSYS 5.6.1, so if you use later versions of ANSYS, some of the menus and dialog boxes may have changed.
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Average Rating: 9.5 (10 votes)  
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Thermal-stress analyses using SHELL57 and SHELL93
  Sheldon Imaoka (CSI)
  Tips on performing thermal-stress analyses of shells, including temperature effects of SHELL93 and compatibility with SHELL57. (From XANSYS posting)
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Average Rating: 8.8 (20 votes)  
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Using the Radiosity Solver in Workbench Simulation [PDF]
  Sheldon Imaoka (ANSYS, Inc.)
  Please note that in Workbench Mechanical 12.1, surface-to-surface radiation (using the Radiosity Solution Method) has been introduced in the GUI, so this memo is obsolete if you use version 12.1 and higher.
"Radiation can play an important role in heat transfer analyses. In Workbench Simulation 10.0, a “Radiation” load has been added to allow users to account for losses to the surroundings, although this does not include radiation exchange between surfaces.
For users wishing to utilize the ANSYS surface-to-surface radiation capabilities, this memo hopes to introduce an easy method to include these effects within Workbench Simulation via Named Selections and Command objects.
This type of methodology can be extended to include any other advanced solution feature of ANSYS which the user may wish to incorporate inside of Workbench Simulation."

(Week 35, week of 11/05/06.)
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Average Rating: 9.5 (21 votes)  
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