BERGANT, Robert ;TIŠELJ, Iztok . The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer. Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 48, n.12, p. 696-706, july 2017. ISSN 0039-2480. Available at: <https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/>. Date accessed: 01 dec. 2024. doi:http://dx.doi.org/.
Bergant, R., & Tišelj, I. (2002). The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer. Strojniški vestnik - Journal of Mechanical Engineering, 48(12), 696-706. doi:http://dx.doi.org/
@article{., author = {Robert Bergant and Iztok Tišelj}, title = {The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer}, journal = {Strojniški vestnik - Journal of Mechanical Engineering}, volume = {48}, number = {12}, year = {2002}, keywords = {near-wall flow; turbulent flow; heat transfer; Prandtl numbers; direct numerical simulation; }, abstract = {For describing the heat transfer from a wall to a fluid at low Reynolds and Prandtl numbers we can use a direct mumerical simulation (DNS), which describes all the length and time scales of the phenomenon. The Reynolds number has a weak influence on the turbulent heat transfer (velocities, temperatures, RMSfluctuations ), whereas the increasing Prandtl number has a stronger influence. In our flow simulations in the channel, three different Prandtl numbers, i.e. Pr = 0.025, Pr = 1 and Pr = 5.4, at a Reynolds number Re » 5000 were analyzed. The resolution of the DNS for turbulent momentum transfer is proportional to Re3/4 in all directions. When considering heat transfer in fluids for a Prandtl number higher than one, the resolution is proportional to Re3/4Pr1/2. Three different numerical simulations at different resolutions were performed at Re = 5260 and Pr = 5.4. All three simulations are a DNS for the velocity field, whereas only the simulation at the highest resolution is also a DNS for the thermal field. The results showed that the thermal field could be accurately described with a lower resolution than theoretically required.}, issn = {0039-2480}, pages = {696-706}, doi = {}, url = {https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/} }
Bergant, R.,Tišelj, I. 2002 July 48. The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 48:12
%A Bergant, Robert %A Tišelj, Iztok %D 2002 %T The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer %B 2002 %9 near-wall flow; turbulent flow; heat transfer; Prandtl numbers; direct numerical simulation; %! The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer %K near-wall flow; turbulent flow; heat transfer; Prandtl numbers; direct numerical simulation; %X For describing the heat transfer from a wall to a fluid at low Reynolds and Prandtl numbers we can use a direct mumerical simulation (DNS), which describes all the length and time scales of the phenomenon. The Reynolds number has a weak influence on the turbulent heat transfer (velocities, temperatures, RMSfluctuations ), whereas the increasing Prandtl number has a stronger influence. In our flow simulations in the channel, three different Prandtl numbers, i.e. Pr = 0.025, Pr = 1 and Pr = 5.4, at a Reynolds number Re » 5000 were analyzed. The resolution of the DNS for turbulent momentum transfer is proportional to Re3/4 in all directions. When considering heat transfer in fluids for a Prandtl number higher than one, the resolution is proportional to Re3/4Pr1/2. Three different numerical simulations at different resolutions were performed at Re = 5260 and Pr = 5.4. All three simulations are a DNS for the velocity field, whereas only the simulation at the highest resolution is also a DNS for the thermal field. The results showed that the thermal field could be accurately described with a lower resolution than theoretically required. %U https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/ %0 Journal Article %R %& 696 %P 11 %J Strojniški vestnik - Journal of Mechanical Engineering %V 48 %N 12 %@ 0039-2480 %8 2017-07-07 %7 2017-07-07
Bergant, Robert, & Iztok Tišelj. "The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer." Strojniški vestnik - Journal of Mechanical Engineering [Online], 48.12 (2002): 696-706. Web. 01 Dec. 2024
TY - JOUR AU - Bergant, Robert AU - Tišelj, Iztok PY - 2002 TI - The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer JF - Strojniški vestnik - Journal of Mechanical Engineering DO - KW - near-wall flow; turbulent flow; heat transfer; Prandtl numbers; direct numerical simulation; N2 - For describing the heat transfer from a wall to a fluid at low Reynolds and Prandtl numbers we can use a direct mumerical simulation (DNS), which describes all the length and time scales of the phenomenon. The Reynolds number has a weak influence on the turbulent heat transfer (velocities, temperatures, RMSfluctuations ), whereas the increasing Prandtl number has a stronger influence. In our flow simulations in the channel, three different Prandtl numbers, i.e. Pr = 0.025, Pr = 1 and Pr = 5.4, at a Reynolds number Re » 5000 were analyzed. The resolution of the DNS for turbulent momentum transfer is proportional to Re3/4 in all directions. When considering heat transfer in fluids for a Prandtl number higher than one, the resolution is proportional to Re3/4Pr1/2. Three different numerical simulations at different resolutions were performed at Re = 5260 and Pr = 5.4. All three simulations are a DNS for the velocity field, whereas only the simulation at the highest resolution is also a DNS for the thermal field. The results showed that the thermal field could be accurately described with a lower resolution than theoretically required. UR - https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/
@article{{}{.}, author = {Bergant, R., Tišelj, I.}, title = {The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer}, journal = {Strojniški vestnik - Journal of Mechanical Engineering}, volume = {48}, number = {12}, year = {2002}, doi = {}, url = {https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/} }
TY - JOUR AU - Bergant, Robert AU - Tišelj, Iztok PY - 2017/07/07 TI - The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer JF - Strojniški vestnik - Journal of Mechanical Engineering; Vol 48, No 12 (2002): Strojniški vestnik - Journal of Mechanical Engineering DO - KW - near-wall flow, turbulent flow, heat transfer, Prandtl numbers, direct numerical simulation, N2 - For describing the heat transfer from a wall to a fluid at low Reynolds and Prandtl numbers we can use a direct mumerical simulation (DNS), which describes all the length and time scales of the phenomenon. The Reynolds number has a weak influence on the turbulent heat transfer (velocities, temperatures, RMSfluctuations ), whereas the increasing Prandtl number has a stronger influence. In our flow simulations in the channel, three different Prandtl numbers, i.e. Pr = 0.025, Pr = 1 and Pr = 5.4, at a Reynolds number Re » 5000 were analyzed. The resolution of the DNS for turbulent momentum transfer is proportional to Re3/4 in all directions. When considering heat transfer in fluids for a Prandtl number higher than one, the resolution is proportional to Re3/4Pr1/2. Three different numerical simulations at different resolutions were performed at Re = 5260 and Pr = 5.4. All three simulations are a DNS for the velocity field, whereas only the simulation at the highest resolution is also a DNS for the thermal field. The results showed that the thermal field could be accurately described with a lower resolution than theoretically required. UR - https://www.sv-jme.eu/sl/article/the-influence-of-prandtl-number-on-near-wall-turbulent-heat-transfer/
Bergant, Robert, AND Tišelj, Iztok. "The Influence of Prandtl Number on Near-Wall Turbulent Heat Transfer" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 48 Number 12 (07 July 2017)
Strojniški vestnik - Journal of Mechanical Engineering 48(2002)12, 696-706
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.
For describing the heat transfer from a wall to a fluid at low Reynolds and Prandtl numbers we can use a direct mumerical simulation (DNS), which describes all the length and time scales of the phenomenon. The Reynolds number has a weak influence on the turbulent heat transfer (velocities, temperatures, RMSfluctuations ), whereas the increasing Prandtl number has a stronger influence. In our flow simulations in the channel, three different Prandtl numbers, i.e. Pr = 0.025, Pr = 1 and Pr = 5.4, at a Reynolds number Re » 5000 were analyzed. The resolution of the DNS for turbulent momentum transfer is proportional to Re3/4 in all directions. When considering heat transfer in fluids for a Prandtl number higher than one, the resolution is proportional to Re3/4Pr1/2. Three different numerical simulations at different resolutions were performed at Re = 5260 and Pr = 5.4. All three simulations are a DNS for the velocity field, whereas only the simulation at the highest resolution is also a DNS for the thermal field. The results showed that the thermal field could be accurately described with a lower resolution than theoretically required.