## ISAAC

### Summary

ISAAC (Integrated Solution Algorithm for Arbitrary Configurations) is a compressible Euler/Navier-Stokes computational fluid dynamics code. ISAAC includes the capability of calculating the Euler equations for inviscid flow or the Navier-Stokes equations for viscous flows. ISAAC uses a domain decomposition structure to accomodate complex physical configurations. ISAAC can calculate either steady-state or time dependent flow.

ISAAC was designed to test turbulence models. Various two equation turbulence models, explicit algebraic Reynolds stress models, and full differential Reynolds stress models are implemented in ISAAC. Several test cases are documented in the User’s Guide.

### Authors

Joseph H. Morrison

### Links

### Status

incomplete information or not officially approved by the authors### Aims and scope

### Mathematical Classification

### Keywords

- algebraic Reynolds stress models
- anisotropic dissipation rate model
- axisymmetric flows
- Boussinesq assumption
- complex geometries
- complex geometry
- computational fluid dynamics
- eddy viscosity models
- Euler equations
- Euler/Navier-Stokes code
- Gibson-Launder pressure-strain mopel
- high Reynolds number
- inviscid flows
- Klebanoff zero pressure gradient flat plate
- molecular diffusion
- Navier-Stokes equations
- physical configurations
- pressure-strain models
- renormalization group model
- Reynolds averaged Navier-Stokes equations
- Reynolds number turbulence flows
- Reynolds stress transport models
- Runge-Kutta time integration scheme
- second-order accurate iterative implicit time integration scheme
- Speziale-Sarkar-Gatski pressure-strain mopel
- steady-state flows
- stress anisotropy
- supersonic flat plate
- time dependent flows
- triple velocity correlation
- turbulence flows
- turbulence models
- turbulent diffusion
- turbulent heat-flux
- turbulent transports
- unsteady flows
- viscous flows
- wall functions
- Zhang-So-Gatski-Speziale models