{ "item_title" : "Computation and Comparison of Efficient Turbulence Models for Aeronautics -- European Research Project Etma", "item_author" : [" Alain Dervieux", "Marianna Braza", "Jean-Paul Dussauge "], "item_description" : "The computation of complex turbulent flows by statistical modelling has already a long history. The most popular two-equation models today were introduced in the early sev- enties. However these models have been generally tested in rather academic cases. The develope- ment of computers has led to more and more acurate numerical methods. The interactions betwe n numerical and modelling techniques are generally not well mastered. Moreover, computation of real life cases, including 3D effects, complex geometries and pressure gra- dients based on two-equation models with low-Reynolds treatment at the proximity of walls are not really of common use. A large number of models has been proposed; this is perhaps the sign that none of them is really satisfactory, and then the assessment of their generality is not an easy task: it requires a lot of understanding of the physics and a lot of work for testing the large number of relevant cases in order to assess their limits of validity which is a condition for an improved confidence in engineering applications. This is probably why workshops and working groups are frequent and the ETMA consor- tium has choosen to build a state of the art in theoretical and numerical statistical turbu- lence modelling for real life computations by taking some marks with respect to previous workshops such as the Stanford meetings (1980,1981); some problems are kept or updated by new experiments, some problems are discarded, some new problems are introduced; the focus is kept on flows with 2D geometries.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/3/32/289/861/332289861X_b.jpg", "price_data" : { "retail_price" : "54.99", "online_price" : "54.99", "our_price" : "54.99", "club_price" : "54.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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