@inproceedings{oai:kyutech.repo.nii.ac.jp:00006104,
 author = {Kato, Sumio and Matsuda, Shoichi and Shimada, Naoyuki and Sakai, Shunsuke and Okuyama, Keiichi and Szasz, Bianca and Shimoda, Takayuki},
 book = {Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan},
 issue = {4},
 month = {Jan},
 note = {The coking phenomenon within a lightweight carbon-phenolic ablator exposed to the heating environment of air is investigated. The existing one-dimensional charring ablation analysis code is modified so that the coking behavior of the ablator can be calculated as well as the thermal response behavior within a lightweight carbon-phenolic ablator. The mass conservation equations for a pyrolysis gas and carbon in the gas are given. The energy equation including the coking process is also presented. The measured density distributions of some arc-heated CFRP ablator samples are compared with those calculated by the ablation analysis code, from which good agreement is obtained. The density profiles with and without coking are compared. The effect of temperature dependency of carbon mass fraction in a pyrolysis gas in the coking equation upon the density profile is examined. The effect of heating rate upon the density distribution in an ablator is also examined. The effect of coking upon the surface recession is studied analytically and experimentally., 31st International Symposium on Space Technology and Science (ISTS), June 3-9, 2017, Matsuyama, Ehime , Japan},
 pages = {461--470},
 publisher = {日本航空宇宙学会},
 title = {One-dimensional Ablation Analysis of Lightweight CFRP Ablators with Coking},
 volume = {17},
 year = {2019}
}