Tong-Miin Liou
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Tong-Miin Liou has a total of 62 co-authors. Here are the top co-authors by number of shared publications:
- Chun-Sheng Wang
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
7 shared publications - Shu Po Chan
Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
7 shared publications - Shyy Woei Chang
Thermal Fluids Laboratory, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143, Taiwan, ROC
6 shared publications Meng-Yu Chen
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
5 shared publicationsYi-Chen Li
5 shared publicationsChun-Sheng Wang
School of Engineering, University of British Columbia, Kelowna, Canada
4 shared publications
Latest Publications
- 14 November 2023
- Published by Springer Nature in Journal of Thermal Analysis and Calorimetry
- Vol. 149 (1) , 111-129
Experimental analysis of aerothermal relations in a heat sink with novel 3D-printed turbulators
- 14 November 2023
- Published by Springer Nature in Journal of Thermal Analysis and Calorimetry
- Vol. 149 (1) , 111-129
Experimental analysis of aerothermal relations in a heat sink with novel 3D-printed turbulators
- Open Access
- 16 July 2021
- Published by ASME International
Effects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel
This study focuses on improving the heat transfer enhancement of turbine blades by using internal cooling method to prevent them from severe thermal corrosion due to the high turbine rotor gas inlet temperature. In recent years, more and more research groups have paid attention to heat transfer enhancement in internal cooling channels of gas turbine blades with various types of
- 16 July 2021
- Published by ASME International
Open AccessEffects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel
This study focuses on improving the heat transfer enhancement of turbine blades by using internal cooling method to prevent them from severe thermal corrosion due to the high turbine rotor gas inlet temperature. In recent years, more and more research groups have paid attention to heat transfer enhancement in internal cooling channels of gas turbine blades with various types of
- 22 March 2021
- Published by Wiley in Journal of Turbomachinery
- Vol. 143 (4)
Effects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel
This work aims to combine the effects of the near-wall and core flow disturbance by proposing novel wing-shaped turbulators. The new turbulators are fabricated with the fused deposition modeling (3D printing) technology. To explore their effects on detailed flow fields, local temperature distributions, and pressure drops in a two-pass square channel, particle image velocimetry (PIV), infrared thermography (IR camera), and pressure transducer measurements are performed. The turbulator pitch, clearance, and truncation gap ratio based on the channel hydraulic diameter of 45.5 mm are, respectively, fixed at 0.7, 0.25, and 0.06. Varied parameters include turbulator attack angle (α = 10 deg, 15 deg, 20 deg, and 30 deg), maximum thickness to chord line ratio (t/C = 0.08, 0.13, 0.16, 0.20, and 0.23), and bulk Reynolds number (Re = 5000–20,000). From the experimental results and flow parameters analyzed, the dimensionless spanwise-averaged mean transverse velocity and cross-sectionally averaged vorticity magnitude are identified to be the most relevant ones to spanwise-averaged local Nusselt number ratio in the first and second pass. Among all examined cases and previous data with Fanning friction factor ratio (f¯/fo) less than 50, the case with α = 20 deg and t/C = 0.20 attains the highest thermal performance factor (TPF) and overall Nusselt number ratio Nu¯/Nuo up to 1.68 and 5.36, respectively. Furthermore, empirical correlations of Nu¯/Nuoandf¯/fo versus α, t/C, and Re are proposed.
- 22 March 2021
- Published by Wiley in Journal of Turbomachinery
- Vol. 143 (4)
Effects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel
This work aims to combine the effects of the near-wall and core flow disturbance by proposing novel wing-shaped turbulators. The new turbulators are fabricated with the fused deposition modeling (3D printing) technology. To explore their effects on detailed flow fields, local temperature distributions, and pressure drops in a two-pass square channel, particle image velocimetry (PIV), infrared thermography (IR camera), and pressure transducer measurements are performed. The turbulator pitch, clearance, and truncation gap ratio based on the channel hydraulic diameter of 45.5 mm are, respectively, fixed at 0.7, 0.25, and 0.06. Varied parameters include turbulator attack angle (α = 10 deg, 15 deg, 20 deg, and 30 deg), maximum thickness to chord line ratio (t/C = 0.08, 0.13, 0.16, 0.20, and 0.23), and bulk Reynolds number (Re = 5000–20,000). From the experimental results and flow parameters analyzed, the dimensionless spanwise-averaged mean transverse velocity and cross-sectionally averaged vorticity magnitude are identified to be the most relevant ones to spanwise-averaged local Nusselt number ratio in the first and second pass. Among all examined cases and previous data with Fanning friction factor ratio (f¯/fo) less than 50, the case with α = 20 deg and t/C = 0.20 attains the highest thermal performance factor (TPF) and overall Nusselt number ratio Nu¯/Nuo up to 1.68 and 5.36, respectively. Furthermore, empirical correlations of Nu¯/Nuoandf¯/fo versus α, t/C, and Re are proposed.
- 22 December 2020
- Published by American Physical Society (APS) in Physical Review Fluids
- Vol. 5 (12) , 124608
Lattice Boltzmann simulation of turbulent flow in rotating rectangular ducts with various aspect ratios
Lattice Boltzmann simulations of fully developed rotating turbulent flow in rectangular ducts are performed. The rectangular ducts are rotated along the spanwise direction at a constant angular speed . The Reynolds number and rotation number are fixed at 150 and 2.5, respectively, where denotes the friction velocity and is the half duct width. A rotating Boltzmann formulation is adopted combined with a shear-improved subgrid-scale model for large eddy simulation. In order to clarify the sidewall effect, the duct aspect ratio (AR) varies from 1 to 6 and then ∞ (channel). Code validations for a square duct are conducted by comparing the present results with previous direct numerical simulation data from Navier-Stokes solvers. Good agreement is found, which confirms the applicability of the rotating lattice Boltzmann model for predicting wall-bounded turbulent flows subject to rotation induced centrifugal and Coriolis forces. With increasing aspect ratio, it is further observed that there exists a critical , beyond or below which the peak of the mean velocity profile is skewed to the suction or pressure side. The same critical value of AR also appears in the anisotropic invariant map indicated by the turbulence state in the duct center. Furthermore, the Ekman layer transport is persistent temporally and spatially in all duct flows and its influence on the core region decreases with increasing AR.- 22 December 2020
- Published by American Physical Society (APS) in Physical Review Fluids
- Vol. 5 (12) , 124608
Lattice Boltzmann simulation of turbulent flow in rotating rectangular ducts with various aspect ratios
Lattice Boltzmann simulations of fully developed rotating turbulent flow in rectangular ducts are performed. The rectangular ducts are rotated along the spanwise direction at a constant angular speed . The Reynolds number and rotation number are fixed at 150 and 2.5, respectively, where denotes the friction velocity and is the half duct width. A rotating Boltzmann formulation is adopted combined with a shear-improved subgrid-scale model for large eddy simulation. In order to clarify the sidewall effect, the duct aspect ratio (AR) varies from 1 to 6 and then ∞ (channel). Code validations for a square duct are conducted by comparing the present results with previous direct numerical simulation data from Navier-Stokes solvers. Good agreement is found, which confirms the applicability of the rotating lattice Boltzmann model for predicting wall-bounded turbulent flows subject to rotation induced centrifugal and Coriolis forces. With increasing aspect ratio, it is further observed that there exists a critical , beyond or below which the peak of the mean velocity profile is skewed to the suction or pressure side. The same critical value of AR also appears in the anisotropic invariant map indicated by the turbulence state in the duct center. Furthermore, the Ekman layer transport is persistent temporally and spatially in all duct flows and its influence on the core region decreases with increasing AR.- 9 December 2019
- Published by Elsevier in International Journal of Heat and Mass Transfer
- Vol. 148, 119139
Lattice Boltzmann study of flow pulsation on heat transfer augmentation in a louvered microchannel heat sink
- 9 December 2019
- Published by Elsevier in International Journal of Heat and Mass Transfer
- Vol. 148, 119139
Lattice Boltzmann study of flow pulsation on heat transfer augmentation in a louvered microchannel heat sink
- 24 July 2018
- Published by American Physical Society (APS) in Physical Review E
- Vol. 98 (1) , 013306
Three-dimensional multidomain lattice Boltzmann grid refinement for passive scalar transport
Simulations of passive scalar transport on a three-dimensional (3D) multiresolution grid are presented within the framework of single relaxation time lattice Boltzmann method. The combined modeling of the fluid flow and scalar transport is handled by a double distribution function approach in which the velocity in the fluid flow equation is solved first and then copied to the scalar equation to solve the corresponding scalar quantities. A 3D scaling technique, considering both external forces and scalar source terms, and two-dimensional bicubic interpolation scheme are developed for coupling nonequilibrium velocity and scalar distributions on the interfaces of different resolution grids. The proposed algorithm is validated for three benchmark cases, i.e., the forced convection in a 3D channel, natural convection in a cubical cavity, and turbulent channel flow with heat transfer. Good agreements are found between the present predictions and previous data, which confirms the capability of the proposed method for the computation of passive scalar transport in 3D domains.
- 24 July 2018
- Published by American Physical Society (APS) in Physical Review E
- Vol. 98 (1) , 013306
Three-dimensional multidomain lattice Boltzmann grid refinement for passive scalar transport
Simulations of passive scalar transport on a three-dimensional (3D) multiresolution grid are presented within the framework of single relaxation time lattice Boltzmann method. The combined modeling of the fluid flow and scalar transport is handled by a double distribution function approach in which the velocity in the fluid flow equation is solved first and then copied to the scalar equation to solve the corresponding scalar quantities. A 3D scaling technique, considering both external forces and scalar source terms, and two-dimensional bicubic interpolation scheme are developed for coupling nonequilibrium velocity and scalar distributions on the interfaces of different resolution grids. The proposed algorithm is validated for three benchmark cases, i.e., the forced convection in a 3D channel, natural convection in a cubical cavity, and turbulent channel flow with heat transfer. Good agreements are found between the present predictions and previous data, which confirms the capability of the proposed method for the computation of passive scalar transport in 3D domains.