Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima
On the non-local turbulent transport and non-gradient thermal diffusion phenomena in HVAC systems
Abstract
Istraživanje strukture turbulencije je neophodno za razumevanje fizike strujno-termodinamičkih procesa u KGH sistemima. Analiza i proračun ovih sistema zasnovani su na poznavanju turbulentnog prenosa i njegovom modeliranju. S tim u vezi, u radu se analiziraju fenomeni nelokalnog prenosa impulsa i nelokalnog prenosa energije toplotom u zakrivljenim kanalima, asimetričnim mlazevima, vrtložnim tragovima i vihornom strujanju. Razmatra se fizika negradijentne turbulentne difuzije i negativne produkcije u brzinskim i temperaturskim poljima. Utvrđena je izvesna analogija između turbulentnih procesa u ovim klasama strujanja. Pomoću numeričke obrade sopstvenih eksperimentalnih rezultata izvršeno je modeliranje nelokalnog turbulentnog prenosa u vihornom strujanju.
The turbulence structure investigation is essential for understanding the physics of flow-thermodynamic processes in Heating, Ventilation and Air conditioning (HVAC) systems. Analysis and calculation of these systems are based on the knowledge of turbulent transfer mechanism and its modeling. In this regard, the paper analyzes the phenomena of non-local momentum transfer and non-local transfer of energy by heat in curved channels, asymmetric jets, wakes and swirling flow. The physics of nongradient turbulent diffusion and negative production in velocity and temperature fields are analyzed. There was a certain analogy between the turbulent processes in these classes of flow. By means of numerical processing of experimental results, modeling of non-local transport in turbulent swirling flow was conducted.
Keywords:
turbulence / swirling flow / non-local transport / non-gradient thermal diffusion / modelingSource:
FME Transactions, 2012, 40, 3, 119-125Publisher:
- Univerzitet u Beogradu - Mašinski fakultet, Beograd
Funding / projects:
- Research on use of solar energy by vacuum collectors with heat pipes and construction of a demonstration facility (RS-MESTD-Technological Development (TD or TR)-33048)
- Application of Novel Measurement and Computational Techniques on Investigation of Air Flow in Ventilation Systems of Energy Extremely Efficient (“Passive”) Buildings (RS-MESTD-Technological Development (TD or TR)-35046)
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Institution/Community
Mašinski fakultetTY - JOUR AU - Burazer, Jela M. AU - Lečić, Milan AU - Čantrak, Svetislav PY - 2012 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1584 AB - Istraživanje strukture turbulencije je neophodno za razumevanje fizike strujno-termodinamičkih procesa u KGH sistemima. Analiza i proračun ovih sistema zasnovani su na poznavanju turbulentnog prenosa i njegovom modeliranju. S tim u vezi, u radu se analiziraju fenomeni nelokalnog prenosa impulsa i nelokalnog prenosa energije toplotom u zakrivljenim kanalima, asimetričnim mlazevima, vrtložnim tragovima i vihornom strujanju. Razmatra se fizika negradijentne turbulentne difuzije i negativne produkcije u brzinskim i temperaturskim poljima. Utvrđena je izvesna analogija između turbulentnih procesa u ovim klasama strujanja. Pomoću numeričke obrade sopstvenih eksperimentalnih rezultata izvršeno je modeliranje nelokalnog turbulentnog prenosa u vihornom strujanju. AB - The turbulence structure investigation is essential for understanding the physics of flow-thermodynamic processes in Heating, Ventilation and Air conditioning (HVAC) systems. Analysis and calculation of these systems are based on the knowledge of turbulent transfer mechanism and its modeling. In this regard, the paper analyzes the phenomena of non-local momentum transfer and non-local transfer of energy by heat in curved channels, asymmetric jets, wakes and swirling flow. The physics of nongradient turbulent diffusion and negative production in velocity and temperature fields are analyzed. There was a certain analogy between the turbulent processes in these classes of flow. By means of numerical processing of experimental results, modeling of non-local transport in turbulent swirling flow was conducted. PB - Univerzitet u Beogradu - Mašinski fakultet, Beograd T2 - FME Transactions T1 - Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima T1 - On the non-local turbulent transport and non-gradient thermal diffusion phenomena in HVAC systems EP - 125 IS - 3 SP - 119 VL - 40 UR - https://hdl.handle.net/21.15107/rcub_machinery_1584 ER -
@article{ author = "Burazer, Jela M. and Lečić, Milan and Čantrak, Svetislav", year = "2012", abstract = "Istraživanje strukture turbulencije je neophodno za razumevanje fizike strujno-termodinamičkih procesa u KGH sistemima. Analiza i proračun ovih sistema zasnovani su na poznavanju turbulentnog prenosa i njegovom modeliranju. S tim u vezi, u radu se analiziraju fenomeni nelokalnog prenosa impulsa i nelokalnog prenosa energije toplotom u zakrivljenim kanalima, asimetričnim mlazevima, vrtložnim tragovima i vihornom strujanju. Razmatra se fizika negradijentne turbulentne difuzije i negativne produkcije u brzinskim i temperaturskim poljima. Utvrđena je izvesna analogija između turbulentnih procesa u ovim klasama strujanja. Pomoću numeričke obrade sopstvenih eksperimentalnih rezultata izvršeno je modeliranje nelokalnog turbulentnog prenosa u vihornom strujanju., The turbulence structure investigation is essential for understanding the physics of flow-thermodynamic processes in Heating, Ventilation and Air conditioning (HVAC) systems. Analysis and calculation of these systems are based on the knowledge of turbulent transfer mechanism and its modeling. In this regard, the paper analyzes the phenomena of non-local momentum transfer and non-local transfer of energy by heat in curved channels, asymmetric jets, wakes and swirling flow. The physics of nongradient turbulent diffusion and negative production in velocity and temperature fields are analyzed. There was a certain analogy between the turbulent processes in these classes of flow. By means of numerical processing of experimental results, modeling of non-local transport in turbulent swirling flow was conducted.", publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd", journal = "FME Transactions", title = "Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima, On the non-local turbulent transport and non-gradient thermal diffusion phenomena in HVAC systems", pages = "125-119", number = "3", volume = "40", url = "https://hdl.handle.net/21.15107/rcub_machinery_1584" }
Burazer, J. M., Lečić, M.,& Čantrak, S.. (2012). Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima. in FME Transactions Univerzitet u Beogradu - Mašinski fakultet, Beograd., 40(3), 119-125. https://hdl.handle.net/21.15107/rcub_machinery_1584
Burazer JM, Lečić M, Čantrak S. Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima. in FME Transactions. 2012;40(3):119-125. https://hdl.handle.net/21.15107/rcub_machinery_1584 .
Burazer, Jela M., Lečić, Milan, Čantrak, Svetislav, "Fenomeni nelokalnog turbulentnog prenosa i negradijentne toplotne difuzije u KGH sistemima" in FME Transactions, 40, no. 3 (2012):119-125, https://hdl.handle.net/21.15107/rcub_machinery_1584 .