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Journal of Enhanced Heat Transfer

Publication de 8  numéros par an

ISSN Imprimer: 1065-5131

ISSN En ligne: 1563-5074

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00037 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.6 SJR: 0.433 SNIP: 0.593 CiteScore™:: 4.3 H-Index: 35

Indexed in

INFLUENCE OF JET-TO-SURFACE DISTANCE AND FREQUENCY ON UNSTEADY HEAT TRANSFER AND MASS FLOW RATES IN AN IMPINGEMENT SYNTHETIC JET

Volume 20, Numéro 2, 2013, pp. 115-136
DOI: 10.1615/JEnhHeatTransf.2013005875
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RÉSUMÉ

Synthetic jets have been emerging as a promising flow control technique since they introduce flow perturbation without net mass injection. The present work deals with analysis of unsteady heat transfer and mass flow rates concerning a synthetic jet impinging on a constant heat flux disk. A harmonic time-dependent velocity profile is assumed at jet orifice outlet. The v2 − f turbulence model, suitable for problems with stagnation points, is employed and compared with the SST/k−ω model. The problem is considered under incompressible, axisymmetric, and temperature-dependent properties assumptions and the pressure-implicit with splitting of operators (PISO) algorithm is employed for coupling of continuity and momentum equations. Influence of simulated diaphragm oscillation frequency (30 ≤ fr ≤ 2500 Hz) and jet-to-surface distance (2 ≤ H/d ≤ 25) is investigated at constant Reynolds number (Re = 2210) and for stroke length 0.551 ≤ L0/d ≤ 27.6. For lower frequencies, the time-averaged Nusselt number increases as frequency raises and for higher frequencies, the Nusselt number decreases as frequency elevates. Results also show that the Nusselt number increases as H/d is raised within smaller H/d for all fr. However, this increase does not continue for larger H/d. Also, synthetic jets are capable of providing more heat transfer than continuous jets at identical Re at large H/d. Finally, flow pattern and mass flow and heat transfer rates taking place through the pressure outlet boundary condition are thoroughly studied.

CITÉ PAR
  1. Alimohammadi Sajad, Fanning Eoin, Persoons Tim, Murray Darina B., Characterization of flow vectoring phenomenon in adjacent synthetic jets using CFD and PIV, Computers & Fluids, 140, 2016. Crossref

  2. Hatami Mohammad, Bazdidi-Tehrani Farzad, Abouata Ahmad, Mohammadi-Ahmar Akbar, Investigation of geometry and dimensionless parameters effects on the flow field and heat transfer of impingement synthetic jets, International Journal of Thermal Sciences, 127, 2018. Crossref

  3. Khuntia Aswini Kumar , Patro Pandaba, Ghoshal Sanjoy , THERMAL PERFORMANCE ANALYSIS OF A SYNTHETIC JET ACTUATOR WITH MOVING BOUNDARY CONDITION , Journal of Enhanced Heat Transfer, 29, 5, 2022. Crossref

  4. Kang Ying, Luo Zhenbing, Deng Xiong, Zhu Yinxin, Xia Zhixun, Dual Synthetic Jet Actuator and Its Applications—Part IV: Analysis of Heat Dissipation and Entropy Generation of Liquid Cooling with Dual Synthetic Jet Actuator, Actuators, 11, 12, 2022. Crossref

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