Conjugate Heat Transfer Study in Hypersonic Flows

  • Niranjan Sahoo
  • Vinayak Kulkarni
  • Ravi Kumar Peetala
Original Contribution
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Abstract

Coupled and decoupled conjugate heat transfer (CHT) studies are carried out to imitate experimental studies for heat transfer measurement in hypersonic flow regime. The finite volume based solvers are used for analyzing the heat interaction between fluid and solid domains. Temperature and surface heat flux signals are predicted by both coupled and decoupled CHT analysis techniques for hypersonic Mach numbers. These two methodologies are also used to study the effect of different wall materials on surface parameters. Effectiveness of these CHT solvers has been verified for the inverse problem of wall heat flux recovery using various techniques reported in the literature. Both coupled and decoupled CHT techniques are seen to be equally useful for prediction of local temperature and heat flux signals prior to the experiments in hypersonic flows.

Keywords

Finite volume method Hypersonic flow Conjugate heat transfer 

Notations

C

Specific heat at constant, kJ/kg K

E

Total specific energy, kJ/kg

e

Specific internal energy, kJ/kg

H

Total specific enthalpy, kJ/kg

h

Specific enthalpy, kJ/kg

k

Thermal conductivity, W/m K

L

Length, m

M

Mach number

p

Pressure, N/m2

\({\dot{\text{q}}}\)

Heat flux, W/m2

Pr

Prandtl number

R

Universal gas constant

Re

Reynolds number

S

Source term

s

Sutherland’s constant

St

Stanton Number

T

Temperature, °C

u

X-direction velocity, m/s

v

Y-direction velocity, m/s

x, y

Cartesian co-ordinate system

Greek symbols

λ

Courant number

γ

Specific heat ratio

μ

Dynamic viscosity, kg/ms

τ

Shear stress, N/m2

ρ

Density, kg/m3

δ

A parameter in AUSM-δ scheme

Subscripts

∞

Freestream quantities

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Copyright information

© The Institution of Engineers (India) 2017

Authors and Affiliations

  • Niranjan Sahoo
    • 1
  • Vinayak Kulkarni
    • 1
  • Ravi Kumar Peetala
    • 2
  1. 1.Department of Mechanical EngineeringIndian Institute of Technology GuwahatiGuwahatiIndia
  2. 2.ABB Global Industries and Services LimitedJayanth Tech Park, NandambakkamChennaiIndia

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