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明-明-金蟲 (小有名氣)
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[求助]
多孔介質(zhì)中的二元混合氣體擴(kuò)散 已有1人參與
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請教前輩們一個(gè)問題,做多孔介質(zhì)中二元混合氣體(摩爾比例已知)的擴(kuò)散時(shí),1、先用sorption將它們吸附進(jìn)去,然后在這個(gè)基礎(chǔ)上用discover或forcite做擴(kuò)散;2、先用adsorption locator將它們按比例導(dǎo)進(jìn)去,然后在這個(gè)基礎(chǔ)上做擴(kuò)散。這兩種處理有什么區(qū)別?還望各位大神不吝賜教 |


金蟲 (小有名氣)

金蟲 (小有名氣)
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前輩能給具體說一下這兩種算法的適用區(qū)別嗎?我也問了另外一位大神,他給出的回復(fù)是這樣的(如下)——sorption我用的不多,主要是用來計(jì)算吸附等溫線、吸附等壓線等等,得到的結(jié)構(gòu)是骨架和一些小點(diǎn),這個(gè)模型不能用來計(jì)算擴(kuò)散系數(shù) 擴(kuò)散系數(shù)是固定壓力、溫度、吸附量以后跑動力學(xué)得到的結(jié)果 adsorption locator我的理解是可以將小分子放在合適的吸附點(diǎn),得到的模型可以計(jì)算擴(kuò)散系數(shù) 具體用途可以看help Adsorption Locator is designed for the study of individual systems, allowing you to find low energy adsorption sites on both periodic and nonperiodic substrates or to investigate the preferential adsorption of mixtures of adsorbate components The Sorption module allows you to simulate a pure sorbate (or mixture of sorbate components) absorbed in a sorbent framework。The information that can be obtained from Sorption simulations includes adsorption isotherms, binding sites, binding energies, global minimum sorbate locations, density and energy fields, energy distributions, sorption selectivities, solubilities, isosteric heats, and Henry constants. 也感謝大神pigrass的回復(fù) |


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