Heat Transfer Characteristics and Reynolds Stress Budgets in Single-Rib Mounting Channel
スポンサーリンク
概要
- 論文の詳細を見る
Heat transfer and fluid flow in a single-rib mounting channel were investigated by directly solving Navier-Stokes and energy equations. Flow and thermal fields were considered to be fully developed at the inlet of the channel, and the simulation was made for spatial advancement of turbulent heat transfer. Keeping the frictional Reynolds number, Reτ0, at 150, the rib height ratio was changed in four steps from H/δ = 0.05 to H/δ = 0.4. Computational results were confirmed to be nearly independent of grid meshes. In addition, numerical accuracy was confirmed through close agreement between computed mean pressure and the experiment by Yao et al. (1995). The numerical results revealed that the highest value of the mean Nusslet number was as large as 1.3 times the smooth surface consuming the same pumping power, and the local enhancement of heat transfer was correlated with the turbulence increase near the rib front and the reattachment point. According to the Reynolds stress budgets for H/δ = 0.2, there were mechanisms to induce powerful fluctuations: (1) Streamwise fluctuation was increased through production by flow deceleration in the upstream of the rib; (2) Redistribution to wall-normal and spanwise fluctuations was fortified by the fluid splattering to the rib front. Therefore, excellent performance of heat transfer was concluded to occur due to flow structures, which induce the strong disturbance near the rib front triggering smooth transition of the separated shear layer.
著者
-
Matsubara Koji
Department Of Mechanical And Production Engineering Niigata University
-
Sakurai Atsushi
Deparment Of Neurology Gunma University School Of Medicine
-
Miura Takahiro
Graduate School of Information Science and Technology, the University of Tokyo
-
SAKURAI Atsushi
Department of Mechanical and Production Engineering, Niigata University
-
MIURA Takahiro
Graduate School of Science and Technology, Niigata University
関連論文
- Chronic inflammatory demyelinating polyneuropathy accompanied by chronic myelomonocytic leukemia : possible pathogenesis of autoimmunity in myelodysplastic syndrome
- Research for Air Cooling System Using Vacuum-Cooled Water Refrigerant
- Numerical Simulation of a Carbon Black Reactor Model
- Electron micrograph of ubiquitin-positive intraneuronal inclusions in the extra-motor cortices in patients with amyotrophic lateral sclerosis
- Electron micrograph of ubiquitin-positive intraneuronal inclusions in the extra-motor cortices in patients with amyotrophic lateral sclerosis
- Ulner Nerve Entrapment Neuropathy at the Cubital Tunnel Associated with Baseball Pitching During Adolescence
- Osteochondritis Dissecans of the Elbow Associated with Baseball During Adolescence
- Buckminsterfullerene II. Electron Density Profile of the C_60 Molecule Determined by the Convolution Theory
- Buckminsterfullerene I.. Production of Fullerenes C_60 and C_70
- Surgical Treatment of Painful Bipartite Patella Associated with Young Athletes
- Numerical Simulation and Experimental Verification of Wave Propagation in a Collapsible Tube
- On the Intermediacy of 2-(2-Oxo-2-phenylethyl)-1-phenylcyclobutanol and 2-Oxa-1,3-diphenylbicyclo-[3.2.0]hept-3-ene in the Photochemical Formation of 2,5-Diphenylfuran from 1,6-Diphenyl-1,6-hexanedione.
- The Effect of Longitudinal Tension on Flow in Collapsible Tube
- Optimized 3-D CT Scan Protocol for Longitudinal Morphological Estimation in Craniofacial Surgery
- Antibody to Hepatitis B e Positive Hepatitis Induced by Withdrawal of Steroid Therapy for Polymyositis: Response to Interferon-Alpha and Cyclosporin A
- Comparison of obstacle sense ability between the blind and the sighted: A basic psychophysical study for designs of acoustic assistive devices
- Determination of the Absolute Configuraton of Urothion
- Improved Isolation Method of Urothion
- C-13 Tracer Studies on the Formation of 2,5-Diphenylfuran in the Photoreaction of 1,6-Diphenyl-1,6-hexanedione
- Fluorination of Fullerene Film by CF_4 Plasma
- Enhanced Soft X-Ray Emission in a Dense Plasma Focus with Additional High Z Gas Puff
- Chemical Studies on the Mistletoe VI : Flavonoid Constituents of Taxillus kaempferi Occurring on Pinus densiflora
- Proton Magnetic Resonance Studies on Cyclopentapeptides : Intramolecular Hydrogen Bonds of Viscumamide and Its Analogs
- Chemical Studies on the Lichen. II : Triterpenoid Constituents of Parmelia tinctorum Despr
- Heat Transfer Characteristics and Reynolds Stress Budgets in Single-Rib Mounting Channel
- New Technique of Decompressive Skinplasty With Artificial Dermis for Severe Brain Swelling:—Technical Note—
- Synthesis of viscumamide and its analogs.
- Coupled Photon and Heat Transport Simulation inside Biological Tissue for Laser Therapy
- A new glycoside, kusaginin isolated from Clerodendron trichotomum.
- Chemical studies on the mistletoe. IV. The structure of isoglucodistylin, a new flavonoid glycoside isolated from Taxillus kaempferi.
- Chemical studies on the Lichen. I. The structure of isolecanoric acid, a new ortho-depside isolated from Parmelia tinctorum despr.
- New Technique of Decompressive Skinplasty With Artificial Dermis for Severe Brain Swelling -Technical Note-
- Lipid analysis of normal dermis and hypertrophic scars