Mach 9.59 HB2 configuration

Axially-symmetric flow-field | Cold hypersonics

Working directory located here

J.-J. O.E. Hoste and V. Casseau, "Verification and Validation of hyFoam for Supersonic External Flows," TechReport-HS1, 05/2021 [PDF→]

1. CASE SETUP

1.1 Geometry & Mesh

Geometry of the HB-2 flare (D is equal 0.1 m)

Views of the 2-D axisymmetric mesh (entire domain and magnified view of the nose region) modelled as a wedge

The structured mesh is aligned with the bow shock in the nose region, has 141,100 cells, and the first layer height is equal to 1 x 10^-5 m.

1.2 Case conditions

The HB2 no-slip isothermal wall is maintained at a temperature of 300 K. The fluid is Air and modelled as a single inert species. The freestream conditions are given in 0/include/initialConditions:

Ma_∞ = 9.59
Re_∞ = 2.1 x 10⁶ m^-1
p_∞ = 75 Pa
T_∞ = 52 K
U_∞ = (1386.2 0 0) m/s

1.3 Thermo-chemical and transport models

This test case is using the following thermo-chemical and transport models:

calorically perfect gas
species viscosity: Sutherland
species thermal conductivity: Eucken<
laminar flow

1.4 Time controls

The initial time-step is set to 1 x 10^-7 s and the maximum CFL number is 0.5. The simulation end time is equal to 0.0155 s.

2. RUNNING

The following commands will copy the mesh from constant/backup-polyMesh to constant/polyMesh, create the latest time folder 0.016, and execute hyFoam in serial

./Allclean  
./Allrun

To run hyFoam in parallel (say on 8 CPUs), please first edit the numberOfSubdomains in the system/decomposeParDict dictionary and type in

./Allclean  
./Allrun 8

3. MONITORING

gnuplot gnuplot/monitorResiduals

4. FLOW VISUALISATIONS IN PARAVIEW

5. POST-PROCESSING

gnuplot gnuplot/monitorCd
gnuplot gnuplot/monitorIntegratedWallHeatFlux

6. SOLUTION

Wall heat flux along the HB2 surface (L is the body length that is equal to 0.49 m)

Contributors: Dr Jimmy-John O.E. Hoste, Dr Daniel E.R. Espinoza, Dr Vincent Casseau