Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model
The abstract is to 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 th...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2017-12-01
|
| Series: | Selected Scientific Papers: Journal of Civil Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/sspjce-2017-0014 |
| _version_ | 1818692796720087040 |
|---|---|
| author | Korbut Vadim Voznyak Orest Sukholova Iryna Myroniuk Khrystyna |
| author_facet | Korbut Vadim Voznyak Orest Sukholova Iryna Myroniuk Khrystyna |
| author_sort | Korbut Vadim |
| collection | DOAJ |
| description | The abstract is to 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 reachin 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 Spalart-Allmaras 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. |
| first_indexed | 2024-12-17T13:03:29Z |
| format | Article |
| id | doaj.art-46cb6f79aae24ebb8d15e7a6838a61e0 |
| institution | Directory Open Access Journal |
| issn | 1338-7278 |
| language | English |
| last_indexed | 2024-12-17T13:03:29Z |
| publishDate | 2017-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Selected Scientific Papers: Journal of Civil Engineering |
| spelling | doaj.art-46cb6f79aae24ebb8d15e7a6838a61e02022-12-21T21:47:18ZengSciendoSelected Scientific Papers: Journal of Civil Engineering1338-72782017-12-01122152210.1515/sspjce-2017-0014sspjce-2017-0014Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent modelKorbut Vadim0Voznyak Orest1Sukholova Iryna2Myroniuk Khrystyna3Kyiv National University of Construction and Architecture, Chair “Heat, Gas supply and ventilation”National University “Lviv Polytechnic”, Institute of Building and Environmental Engineering, Chair “Heat, Gas supply and ventilation”National University “Lviv Polytechnic”, Institute of Building and Environmental Engineering, Chair “Heat, Gas supply and ventilation”National University “Lviv Polytechnic”, Institute of Building and Environmental Engineering, Chair “Heat, Gas supply and ventilation”The abstract is to 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 reachin 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 Spalart-Allmaras 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.https://doi.org/10.1515/sspjce-2017-0014air distributionswirl jetspread jetvariable regimeair velocity |
| spellingShingle | Korbut Vadim Voznyak Orest Sukholova Iryna Myroniuk Khrystyna Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model Selected Scientific Papers: Journal of Civil Engineering air distribution swirl jet spread jet variable regime air velocity |
| title | Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model |
| title_full | Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model |
| title_fullStr | Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model |
| title_full_unstemmed | Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model |
| title_short | Modelling of air flow supply in a room at variable regime by using both K - E and spalart – allmaras turbulent model |
| title_sort | modelling of air flow supply in a room at variable regime by using both k e and spalart allmaras turbulent model |
| topic | air distribution swirl jet spread jet variable regime air velocity |
| url | https://doi.org/10.1515/sspjce-2017-0014 |
| work_keys_str_mv | AT korbutvadim modellingofairflowsupplyinaroomatvariableregimebyusingbothkeandspalartallmarasturbulentmodel AT voznyakorest modellingofairflowsupplyinaroomatvariableregimebyusingbothkeandspalartallmarasturbulentmodel AT sukholovairyna modellingofairflowsupplyinaroomatvariableregimebyusingbothkeandspalartallmarasturbulentmodel AT myroniukkhrystyna modellingofairflowsupplyinaroomatvariableregimebyusingbothkeandspalartallmarasturbulentmodel |