Strain rate and pressure effects on multi-branched counterflow flames
نویسندگان
چکیده
منابع مشابه
Effect of pressure on counterflow H2–air partially premixed flames
A computational investigation of high-pressure hydrogen–air partially premixed flames (PPFs) is reported to characterize the effect of pressure on the flame structure, and the relevance of reaction limits for these flames. The flames are computed using the Mueller mechanism consisting of 19 elementary reactions and 9 species. Although the mechanism has been validated during previous investigati...
متن کاملEffects of strain rate on high-pressure nonpremixed n-heptane autoignition in counterflow
The effect of steady strain on the transient autoignition of n-heptane at high pressures is studied numerically with detailed chemistry and transport in a counterflow configuration. Skeletal and reduced n-heptane mechanisms are developed and validated against experiments over a range of pressure and stoichiometries. Two configurations are investigated using the skeletal mechanism. First, the ef...
متن کاملthe effects of speech rate,prosodic features, and blurred speech on iranian efl learners listening comprehension
کلید واژه ها به زبان انگلیسی: effect of speech rate on listening comprehension, blurred speech,segmental and suprasegmental features,authentic speech,intelligibility, discrimination, omission, assimilation چکیده: سرعت مطالب شنیداری در کلام پیوسته بطور کلی همواره کابوسی بوده برای یادگیرنده های زبان دوم و بالاخص برای شنوندگان ایرانی. علی رغم عقل سلیم که کلام با سرعت کندتری فعالیتهای درک مطلب شن...
15 صفحه اولEffect of pressure on structure and extinction of near-limit hydrogen counterflow diffusion flames
Effect of pressure on structure and extinction of near-limit hydrogen counterflow diffusion flames Report Title Results of measurements of critical conditions for extinction and of temperature pro?les in counter?ow di?usion ? ames are reported. The fuel was a hydrogen–nitrogen mixture with 14 mole percent hydrogen, and the oxidizer was air. Pressures ranged from 0.1 MPa to 1.5 MPa; measurements...
متن کاملQuantitative scalar dissipation rate measurements in vortex perturbed counterflow diffusion flames
Even though the scalar dissipation rate at the stoichiometric surface, stoich, is recognized to be the most fundamental fluid time scale in laminar diffusion flames, their structure and extinction behavior is often characterized simply in terms of strain rate, a much more easily measurable observable. Yet, the two variables are different, especially in unsteady flamelets. An experimental techni...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Combustion and Flame
سال: 2020
ISSN: 0010-2180
DOI: 10.1016/j.combustflame.2020.07.041