=V*D/ =16354.7…(3) this value is in between we can use Hilpert correlation.=69.273…(4)C=0.193, m=0.618 ... ConclusionWe calculated the Reynolds number, Pr number, and Nusseltnumber from the experimental results ... and the Pr number.
m : = 0.618We can get the Nusseltnumber and Convection coefficient as ever, it can be confirmed in ... for the Hilpert equation[Table 3] shows the values of constants C and m at as follows.Constant C : = 0.193Constant ... These constants are using for the Hilpert equation.Reynolds Number,0.4 ~ 40.9890.3304 ~ 400.9110.38540
{Nμ_{L}`=`0.193Re_{L}^0.168}`Pr^{1/3}(2)(2)식은 {4,000 `` ... 위에서 나타난 세가지 무차원수를 각각, 넛셀수 (Nusseltnumber)라 한다. ... 프란틀 수 (Prandtl number; 레이놀즈 수 (Reynolds number; k,L,ρ,V,μ,C 는 각각 유체의 열전도계수, 고체의 대표 길이, 유체의 밀도, 유체의 접근