Description of the Numerical Methodology for the Er - Coftac Test Case
نویسنده
چکیده
The purpose of this work is to compare di erent low-Reynolds-number turbulence models and their suitability for the highly three dimensional return channel with a deswirl cascade. A comparison is made between Chien's k model, Chien's model with a rotational correction, Gatski et al. ARSM and the full Reynolds stress model by Speziale et al.. Experiments are provided by Concepts ETI. MAIN RESULT Results for the test case F3 in the ERCOFTAC Workshop on Turbomachinery Flow Predictions VI PAGES 16
منابع مشابه
Methodology of Description in Shaykh al – Ishraq
As an ontologist philosopher Shaykh al – Isharq believes in a heirarchegal being on the basis of which presents his classification of various descriptions. These descriptions are various both in terms of longitudinal and latitudinal. That is, for instance though his intative descriptions are at the latitude of his logical analytic descriptions, possesses itself a longitudinal order successiv...
متن کاملEfficiency of seismic wave velocity and electrical resistivity in estimation of limestone rock mass quality indices (Q, Qsrm) (Case study: Asmari formation, SW Iran)
In this research, the relationship between P-wave velocity (Vp) and Electrical Resistivity (ER) parameters with rock mass quality indices is investigated; parameters such as rock mass quality classification (Q) and modified system for sedimentary rocks, known as Qsrm. For making predictive models, about 1200 data-sets extracted from sections drilled in Seymareh and Karun 2 Dam Sites (SDS and KD...
متن کاملNumerical Modeling of Macrosegregation during the Direct-Chill Casting of an Al alloy Billet
ABSTRACT Macrosegregation has been received high attention in the solidification modeling studies. In the present work, a numerical model was developed to predict the macrosegregation during the DC Casting of an Al-4.5wt%Cu billet. The mathematical model developed in this study consists of mass, momentum, energy and species conservation equations for a two-phase mixture of liquid and solid in a...
متن کاملTreatment of periimplantitis with an Er: YAG Laser and GBR A case report
Treatment of periimplantitis with an Er: YAG Laser and GBR A case report Dr. M. Rismanchian* - Dr. R. Birang** - Dr. A. Moghareh Abed** *- Assistant Professor of Fixed Prosthodontics Dept. Faculty of Dentistry – Isfahan University of Medical Sciences. **- Assistant Professor of Periodontics Dept. Faculty of Dentistry, Isfahan University of Medical Sciences. Introduction: The increasing use of d...
متن کاملData mining for decision making in engineering optimal design
Often in modeling the engineering optimization design problems, the value of objective function(s) is not clearly defined in terms of design variables. Instead it is obtained by some numerical analysis such as FE structural analysis, fluid mechanic analysis, and thermodynamic analysis, etc. Yet, the numerical analyses are considerably time consuming to obtain the final value of objective functi...
متن کامل