Моделювання повітророзподілу в приміщенні у змінному режимі за допомогою моделі турбулентності Спаларта – Алмараса
Journal Title: Вісник Національного університету "Львівська політехніка". Серія "Теорія та практика будівництва" - Year 2016, Vol 0, Issue 844
Abstract
The article is devoted to the decision of actual task of air distribution efficiency increasing with the help of swirl and spread air jets to provide normative parameters of air in the production apartments. The mathematical model of air supply with swirl and spread air jets in that type of apartments is improved. It is shown that for reaching of air distribution maximal efficiency it is necessary to supply air by air jets, that intensively extinct before entering into a working area. Simulation of air flow performed with the help of CFD FLUENT (Ansys FLUENT). Сalculations of the equation by using one-parameter model of turbulence Spalarta-Almarasa are presented. The graphical and the analytical dependences on the basis of the conducted experimental researches, which can be used in subsequent engineering calculations, are shown out. Dynamic parameters of air flow that is created due to swirl and spread air jets at their leakage at variable regime and creation of dynamic microclimate in a room has been determined. Results of experimental investigations of air supply into the room by air distribution device which creates swirl air jets for creation more intensive turbulization air flow in the room are presented. Obtained results of these investigations give possibility to realize engineer calculations of air distribution with swirl air jets. The results of theoretical researches of favourable influence of dynamic microclimate to the man are presented. When using dynamic microclimate it’s possible to decrease conditioning and ventilation system expenses. Human organism reacts favourably on short lasting deviations from the rationed parameters of air environment.
Authors and Affiliations
O. Voznyak, I. Sukholova
Keywords
Related Articles
- EP ID EP230168
- DOI -
- Views 126
- Downloads 0
РЕЗУЛЬТАТИ ЕКСПЕРИМЕНТАЛЬНИХ ДОСЛІДЖЕНЬ БАЛКОВОЇ ЗАЛІЗОБЕТОННОЇ ПРОЛЬОТНОЇ БУДОВИ МОСТА ЗА ЕТАПАМИ РЕКОНСТРУКЦІЇ
On the network of state and local roads, a significant number of bridges with precast or monolithic span structures of small and medium spans are constructed according to TP-56. At present time, their normalized period o...
THE INFLUENCE OF VERTICAL STIFFENERS ON THE STIFF CHARACTERISTICS OF SILO CAPACITIES FOR GRAIN STORAGE
The paper deals with the behavior of cylindrical steel capacity under the load with different number of vertical stiffeners. It was studied both short constructions with the clamp in all points and relatively tall constr...
Моделювання процесів теплообміну в топках водотрубних котлів дКВР(де)-10/14
Тhe results of a numerical study of heat transfer in water-tube boiler DKVR(DE)-10/14 furnace are provided. The geometric model of the inner cavity of furnaces and burners is constructed with help of boiler and burner GM...
ПІДСИЛЕННЯ ЗАЛІЗОБЕТОННИХ КОНСТРУКЦІЙ ЗА ДОПОМОГОЮ ПОПЕРЕДНЬО НАПРУЖЕНИХ ЕЛЕМЕНТІВ
The basic design of modern buildings and constructions are made of concrete, reinforced concrete or brick. To date already made significant contributions to science of strengthening of various reinforced concrete structu...
ROAD CEMENT CONCRETES BASED ON MODIFIED ADDITIVES OF NEW GENERATION
The modified concrete mixes design and cement concrete with the given operational parameters was developed. During the experiment, cement concrete was obtained from concrete mixtures of various compositions with modifyin...