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Steady state heat transfer within a nanoscale spatial domain.

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Steady state heat transfer within a nanoscale spatial domain.
นักวิจัย : Poletkin, Kirill V. , Kulish, Vladimir.
คำค้น : DRNTU::Engineering::Mechanical engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Poletkin, K. V. & Kulish, V. (2012). Steady State Heat Transfer Within a Nanoscale Spatial Domain. Journal of Heat Transfer, 134(7). , http://hdl.handle.net/10220/8164 , http://dx.doi.org/10.1115/1.4006160 , 160237
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of heat transfer
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this paper, we study the steady state heat transfer process within a spatial domain of the transporting medium whose length is of the same order as the distance, travelled by thermal waves before these waves are dissipated by thermal diffusion. In this study, the thermal conductivity is defined as a function of a spatial variable. This is achieved by analyzing an effective thermal diffusivity that is used to match the transient temperature behavior in the case of heat wave propagation by the result obtained from the Fourier theory. Then, combining the defined sizedependent thermal conductivity with Fourier’s law allows us to study the behavior of the heat flux at nanoscale and predict that a decrease of the size of the transporting medium leads to an increase of the heat transfer coefficient which reaches its finite maximal value, contrary to the infinite value predicted by the classical theory. The upper limit value of the heat transfer coefficient is proportional to the ratio of the bulk value of the thermal conductivity to the characteristic length of thermal waves in the transporting medium.

บรรณานุกรม :
Poletkin, Kirill V. , Kulish, Vladimir. . (2555). Steady state heat transfer within a nanoscale spatial domain..
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Poletkin, Kirill V. , Kulish, Vladimir. . 2555. "Steady state heat transfer within a nanoscale spatial domain.".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Poletkin, Kirill V. , Kulish, Vladimir. . "Steady state heat transfer within a nanoscale spatial domain.."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Poletkin, Kirill V. , Kulish, Vladimir. . Steady state heat transfer within a nanoscale spatial domain.. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.