Abstract
In this paper we studied results of calculation of the direct-flow and swirled, laminar and turbulent flows of liquids and gases in pipes and the channels including sections from a constant and a variable on length by the area of cross-section section. The hydrodynamics and heat transfer of the swirled flows on a method local rotation in the field of a near input in an experimental section and in the conditions of rotation of a wall round the longitudinal axis are investigated in details. At modeling of turbulent transfer of momentum and heat the closing schemes of the second order with the differential equations for the total tensor of Reynolds shear stresses and specific fluxes of heat with the original low-Reynolds basic base from the (k-L-) and (k-τ); equations are used. Mechanisms of generation, evolution of recalculated flows, attenuation and development of swirled stream in the direct-flow are analyzed. The correction of algorithm and advantage of model in a prediction of distributions of local and integrated parameters of a complex vortical flow are illustrated by comparisons with experimental data.
| Original language | English |
|---|---|
| Title of host publication | 2010 International Forum on Strategic Technology, IFOST 2010 |
| Pages | 106-110 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | 2010 International Forum on Strategic Technology, IFOST 2010 - Ulsan, Korea, Republic of Duration: 13 Oct 2010 → 15 Oct 2010 |
Conference
| Conference | 2010 International Forum on Strategic Technology, IFOST 2010 |
|---|---|
| Country | Korea, Republic of |
| City | Ulsan |
| Period | 13.10.10 → 15.10.10 |
Fingerprint
Keywords
- Heat transfer
- Hydrodynamics
- Modeling
- Rotation
- Turbulence
ASJC Scopus subject areas
- Decision Sciences (miscellaneous)
Cite this
Numerical modelling of a vortical intensification of heat transfer in fields of centrifugal mass forces in elements of the power equipment with a curvilinear wall. / Kharlamov, S. N.; Kim, V. Yu; Silvestrov, S. I.
2010 International Forum on Strategic Technology, IFOST 2010. 2010. p. 106-110 5667992.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Numerical modelling of a vortical intensification of heat transfer in fields of centrifugal mass forces in elements of the power equipment with a curvilinear wall
AU - Kharlamov, S. N.
AU - Kim, V. Yu
AU - Silvestrov, S. I.
PY - 2010
Y1 - 2010
N2 - In this paper we studied results of calculation of the direct-flow and swirled, laminar and turbulent flows of liquids and gases in pipes and the channels including sections from a constant and a variable on length by the area of cross-section section. The hydrodynamics and heat transfer of the swirled flows on a method local rotation in the field of a near input in an experimental section and in the conditions of rotation of a wall round the longitudinal axis are investigated in details. At modeling of turbulent transfer of momentum and heat the closing schemes of the second order with the differential equations for the total tensor of Reynolds shear stresses and specific fluxes of heat with the original low-Reynolds basic base from the (k-L-) and (k-τ); equations are used. Mechanisms of generation, evolution of recalculated flows, attenuation and development of swirled stream in the direct-flow are analyzed. The correction of algorithm and advantage of model in a prediction of distributions of local and integrated parameters of a complex vortical flow are illustrated by comparisons with experimental data.
AB - In this paper we studied results of calculation of the direct-flow and swirled, laminar and turbulent flows of liquids and gases in pipes and the channels including sections from a constant and a variable on length by the area of cross-section section. The hydrodynamics and heat transfer of the swirled flows on a method local rotation in the field of a near input in an experimental section and in the conditions of rotation of a wall round the longitudinal axis are investigated in details. At modeling of turbulent transfer of momentum and heat the closing schemes of the second order with the differential equations for the total tensor of Reynolds shear stresses and specific fluxes of heat with the original low-Reynolds basic base from the (k-L-) and (k-τ); equations are used. Mechanisms of generation, evolution of recalculated flows, attenuation and development of swirled stream in the direct-flow are analyzed. The correction of algorithm and advantage of model in a prediction of distributions of local and integrated parameters of a complex vortical flow are illustrated by comparisons with experimental data.
KW - Heat transfer
KW - Hydrodynamics
KW - Modeling
KW - Rotation
KW - Turbulence
UR - http://www.scopus.com/inward/record.url?scp=78651479782&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78651479782&partnerID=8YFLogxK
U2 - 10.1109/IFOST.2010.5667992
DO - 10.1109/IFOST.2010.5667992
M3 - Conference contribution
AN - SCOPUS:78651479782
SN - 9781424490387
SP - 106
EP - 110
BT - 2010 International Forum on Strategic Technology, IFOST 2010
ER -