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Jin-Der Lee

Bio: Jin-Der Lee is an academic researcher from National Tsing Hua University. The author has contributed to research in topics: Boiling & Subcooling. The author has an hindex of 4, co-authored 4 publications receiving 114 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors investigated the nonlinear dynamics of multiple parallel boiling channels with forced flows by using the Galerkin nodal approximation method and constructed stability maps for multiple-channel systems subject to a constant total mass flow rate on the parameter plane of the subcooling and phase change numbers.

79 citations

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TL;DR: In this article, the authors explored the nonlinear dynamics of a nuclear-coupled boiling channel with forced flows on the basis of the Galerkin nodal approximation method for the channel fluid flow and point kinetics for the neutron field dynamics.

31 citations

Journal ArticleDOI
TL;DR: In this article, the authors integrated a single nuclear-coupled boiling channel model with the external force method to illustrate the qualitative dynamic behaviors of a two-phase flow system subject to external vertical accelerations.

5 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of void-reactivity feedback on the bifurcation phenomena and nonlinear characteristics of a single nuclear-coupled boiling channel in an advanced boiling water reactor was investigated.

5 citations


Cited by
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Journal ArticleDOI
TL;DR: An updated review of two-phase flow instabilities including experimental and analytical results regarding density-wave and pressure-drop oscillations, as well as Ledinegg excursions, is presented in this article.

292 citations

Journal ArticleDOI
TL;DR: In this article, the authors explored experimentally the two-phase flow instability in a microchannel heat sink with 15 parallel microchannels and found that the magnitude of pressure drop oscillations may be used as an index for the appearance of reversed flow.

117 citations

Journal ArticleDOI
TL;DR: In this paper, the authors explore experimentally stabilizing flow boiling water in ten parallel micro-channel heat sinks with a diverging cross-section design and show that the stability boundary is plotted on the plane of the subcooling number against the phase change number (Npch).
Abstract: This paper explores experimentally stabilizing flow boiling water in ten parallel microchannel heat sinks with a diverging cross-section design. Each diverging microchannel has a mean hydraulic diameter of 120 µm and a diverging angle of 0.5° while the channel depth is uniform at 76 µm. Flow visualization shows that heat flux and mass flux significantly affect the stability of flow boiling in the parallel microchannels. The extent of pressure drop oscillations may be regarded as an index for the onset of flow boiling instability. The stability boundary is plotted on the plane of the subcooling number (Nsub) against the phase change number (Npch) and compared with microchannels with a uniform cross-section design in the literature. The present study confirms that, in terms of stability performance, the flow boiling in the parallel microchannel heat sinks with a diverging cross-section design is superior to a uniform cross-section design.

94 citations

Journal ArticleDOI
TL;DR: In this paper, the bubble dynamics in two parallel trapezoidal microchannels with a hydraulic diameter of 47.7μm were investigated and it was shown that the bubble grows in the axial direction both forward and backward with its length increases exponentially due to evaporation of the thin liquid film between the bubble and heating wall.

81 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the nonlinear dynamics of multiple parallel boiling channels with forced flows by using the Galerkin nodal approximation method and constructed stability maps for multiple-channel systems subject to a constant total mass flow rate on the parameter plane of the subcooling and phase change numbers.

79 citations