Program EDDYBL

D.7. EDDYBL OUTPUT PARAMETERS 413Computations can be initiated either from turbulent starting profilesthat are generated from specified integral properties, or from laminar profilesthat are automatically generated .The k-w and multiscale models are very robust and can be integratedthrough transition from laminar to turbulent flow with and without low-Reynolds-number corrections . By contrast, the k-c model requires smallerstreamwise steps than the k-w and multiscale models, and, in general, cannotbe integrated through transition unless extremely small steps are taken .If integral properties are unknown and a k-c solution is desired, theoptimum procedure is to start laminar with the k-w model and integratethrough transition . Then, select the desired k-c model and use the Restartoption to continue the run .Finally, if numerical difficulties are encountered with the k-c model, trychanging the value of input parameter PSIEPS in the Turbulence Modelmenu . Table 7.2 lists the default value of this parameter (0E) ; its purposeis explained in Section 7 .3 .D .7EDDYBL Output ParametersThe following dimensionless quantities are printed in the profiles portionof Program EDDYBL output .Name Symbol/Equation Definitioni i Mesh point numbery/delta y/S Dimensionless normal distanceu/Ue ii/U, Dimensionless velocityyplus y+ = UTy/vw Compressible sublayer-scaled velocityuplus u+ = u"/u' Compressible sublayer-scaled velocityk/Ue**2 k/Ue Dimensionless turbulence energyomega veca/Ue Dimensionless dissipation rateeps/mu PT/P Dimensionless eddy viscosityL/delta k7/(w6) Dimensionless turbulence length scaleuv/tauw Txy /Tw Dimensionless Reynolds shear stressT/Te TIT' Temperature ratioThe following quantities are printed in the integral-parameter portionof Program EDDYBL output .