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Technopedia Center
PMB University Brochure
Faculty of Engineering and Computer Science
S1 Informatics S1 Information Systems S1 Information Technology S1 Computer Engineering S1 Electrical Engineering S1 Civil Engineering

faculty of Economics and Business
S1 Management S1 Accountancy

Faculty of Letters and Educational Sciences
S1 English literature S1 English language education S1 Mathematics education S1 Sports Education
teknopedia

teknopedia

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teknopedia
url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url 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url url
  2. Weltenzyklopädie
  3. عدد روشکو - ویکی‌پدیا، دانشنامهٔ آزاد
عدد روشکو - ویکی‌پدیا، دانشنامهٔ آزاد
از ویکی‌پدیا، دانشنامهٔ آزاد

عدد روشکو(به انگلیسی: Roshko number) یک عدد بی بعد می باشد که در دینامیک سیالات برای توصیف رفتار سیالات متلاطم استفاده می شود.عدد روشکو به افتخار هوانورد آمریکایی آناتول روشکو(به انگلیسی: Anatol Roshko) نامگذاری شده است.این عدد که با نماد نشان داده می‌شود به صورت زیر تعریف می شود:

که در این رابطه عدد بدون بعد روشکو، عدد بدون بعد استروهال، عدد بدون بعد رینولدز،f فرکانس تلاطم سیال، طول مشخصه(مثلاً قطر هیدرولیکی) و ν ویسکوزیته سینماتیک سیال می باشد.

منابع

  • Olim, A. M.; Riethmuller, M. L.; Gameiro da Silva, M. C. (2002). "Flowfield characterisation in the wake of a low-velocity heated sphere anemometer". Exp. Fluids. 32 (6): 645–651. Bibcode:2002ExFl...32..645O. doi:10.1007/s00348-001-0403-6.
  • Ormieres, D.; Provansal, M. (1999). "Transition to turbulence in the wake of a sphere". Phys. Rev. Lett. 83 (1): 80–83. Bibcode:1999PhRvL..83...80O. doi:10.1103/PhysRevLett.83.80.
Pusat Layanan

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