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Transactions: INTERNATIONAL JOURNAL of MECHANICS
Transactions ID Number: 19-401
Full Name: Behnaz Arjomand kermani
Position: Educator
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Sex: Female
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Country: IRAN
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Title of the Paper: Numerical investigation of heat transfer process form with constant heat flux in exothermic board by natural convection inside a closed cavity
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Number of paper pages: 8
Abstract: Natural Convection process within a closed cavity when heat source is on the vertical wall of it special importance .heat source generate constant heat flux. A common practical example of this case is electronic boards inside a computer or radiator in the room. One of the important parameters in designing electronic boards in the computer or another things is the maximum temperature of pieces; therefore we must examine the factors that affect this to have a reduced the maximum temperature. Governing equations on fluid flow mass, velocity and energy equations using the finite element method with power law, pr = 0.7, a non-uniform network is converted to algebraic form. Because of buoyancy force the Momentum equation depended on temperature. Momentum equations and energy equation are solved simultaneously. Momentum equations that include unknown pressure solve with Simple algorithm. The velocities are obtained from Momentum equation must satisfy continuity equatio!
n. Heat generation is constant. Wallfs temperature is T‡ (temperature of environment). At first velocity of fluid is . With these boundary conditions we check the effect of thermal springs placed inside the cavity, cavity dimensional, size of thermal springs (heat source) to reduce temperature. Convergence of the energy equation is 10-7. Convergence standard is temperature changes.
Keywords: Closed cavity, Exothermic board, Finite element, Heat flux, Natural convection
EXTENSION of the file: .doc
Special (Invited) Session: NUMERICAL INVESTIGATION OF HEAT TRANSFER PROCESS FORM EXOTHERMIC BOARD BY NATURAL CONVECTION INSIDE A CLOSED CAVITY
Organizer of the Session: 647-175
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