این فایل 115 صفحه ای یکی از بهترین و کامل ترین مجموعه فایل های مکتوب در زمینه نمودارهای کارکردی پروانه سری بی وگنینگ می باشد. در این فایل نمودارهای کارکردی پروانه بر حسب ضرایب نیروی رانش و گشتاور بیان شده و راندمان آن ها به نمایش گذاشته شده است.
ABSTRACT
The B-series propellers were designed and tested at the Netherlands Ship Model Basin in Wageningen The open-water characteristics of 120 propeller models of the B-series were tested at N .s.M .B.and analyzed with .multiple polynomial regression analysis [1] . The derived polynomials express the thrust and torque coefficients in terms of the number of blades, the blade area ratio, the pitch-diameter ratio and the advance coefficient. The Rey nolds number effect and the effect of variation of blade thickness on the B series propeller characteristics have also been evaluated at N .S.M.B . In this report the polynomials derived in [1] are used to plot the open water propel ler characteristics for Reynolds
number 2.ox106 and for the ranges of number of blades, blade area ratio and pitch-diameter ratio recommended by N .S.M .B. The extent of applicability of the regression polynomials is also discussed
برچسب ها: نمودار کارکردی پروانه دریایی، سازمان بنادر و دریانوردی