題目：基于三明治模型的AP/HTPB復(fù)合固體推進(jìn)劑燃燒性能估算
摘要：本研究提出了一種估算不含鋁的復(fù)合固體推進(jìn)劑燃速的方法。使用隨機(jī)填充算法生成三維推進(jìn)劑物理模型，該推進(jìn)劑由球形高氯酸銨（AP）顆粒和端羥基聚丁二烯（HTPB）粘合劑組成。 AP和HTPB的截距長(zhǎng)度（intercept lengths）是通過(guò)對(duì)推進(jìn)劑藥柱進(jìn)行切片并在切片上畫(huà)線(xiàn)獲得的。平均截距的長(zhǎng)度被用來(lái)近似AP和三明治推進(jìn)劑粘合劑的寬度（？）討論了AP 單元推進(jìn)劑火焰和擴(kuò)散火焰的參數(shù)選擇，所計(jì)算的燃速與實(shí)驗(yàn)值較為吻合。此外，對(duì)推進(jìn)劑的溫度敏感性進(jìn)行了估計(jì)，并且該值比實(shí)驗(yàn)研究報(bào)告的值更接近于實(shí)驗(yàn)研究報(bào)告的值。
Title: Estimation of burning characteristics of AP/HTPB composite solid propellant using a sandwich model
Abstract: The present study suggests a technique to estimate the burn rate of non-aluminized propellant compositions. A random packing algorithm is used to generate a three-dimensional propellant pack consisting of spherical Ammonium perchlorate (AP) particles and Hydroxyl-terminated poly butadiene (HTPB) binder. Intercept lengths of AP and HTPB were obtained by slicing the propellant pack and lines drawn on the sliced planes. The average intercept lengths were recorded and then used as thickness of AP and binder sandwich propellants. A discussion on the choice of parameters is made for both AP monopropellant flame and the diffusion flame. Comparison of burn rates of computational results is done with experimental studies reported in literature. A reasonable match has been obtained in these comparisons. Further, temperature sensitivity, which is an important factor, has been estimated and the values are closer to those reported from experimental studies than the values reported by earlier studies.
原文鏈接，CNF，IF 4.12
