تحلیل عملکرد عملگرهای مومنتوم سیالی در مدیریت دمایی میکروماهواره براساس چیدمان هرمی و سه محوره

نوع مقاله: مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

1 دانشگاه صنعتی مالک اشتر

2 مجتمع دانشگاهی هوافضا، دانشگاه صنعتی مالک اشتر

چکیده

در تحقیق حاضر، عملکرد عملگرهای مومنتوم سیالی در مدیریت دمایی ماهواره براساس دو چیدمان پیشنهادی هرمی و سه محوره مورد بررسی قرار گرفته است. به این منظور دمای دیواره‌های ماهواره با حضور عملگرها و بدون عملگرها در یک دور چرخش مداری ماهواره مورد بررسی قرار گرفته و نتایج با یکدیگر مقایسه شده‌اند. برای عملگرهای مومنتوم سیالی که به صورت یک حلقه بسته هستند از قاب مرجع چرخان استفاده شده و جریان سیال در داخل عملگرها آرام در نظر گرفته شده است. میزان تاثیر سرعت دورانی سیال در داخل عملگرها بر دمای دیواره‌های ماهواره تحت دو سرعت دورانی مختلف بررسی و شار گرمایی وابسته به زمان بر دیواره‌ها استخراج شده است. نتایج بیانگر این است که در چیدمان هرمی، کاهش دمای سطوح دیواره ماهواره متاثر از دو پارامتر سرعت دورانی سیال و میزان چرخش مداری ماهواره بوده، اما در شرایط بحرانی، چیدمان سه محوره سریعتر می‌تواند این مدیریت دمایی را انجام دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Performance Analysis of FMC Actuators to Microsatellite Temperature Management Based on 3-Axis and Pyramidal Configuration

نویسندگان [English]

  • MEHRAN NOSRATOLLAHI 1
  • Ahmad Soleimani 2
1 Malek Ashtar university
2 Aerospace Department, Malek Ashtar University of Technology
چکیده [English]

In this paper, the performance of fluid momentum controller (FMC) actuators in satellite temperature management is investigated based on two pyramidal and 3-axis proposed configurations. In this regard, the temperature of different satellite surfaces with fluid actuators and without actuators in an orbital period of satellite is investigated and the results are compared to each other. For FMC actuators that are closed as a loop, a Moving Reference Frame (MRF) is used and the flow inside the actuators is laminar. The effect of fluid angular velocity of actuators on the temperature of satellite surfaces with two different angular velocity has been investigated and time-dependent heat flux is applied to the satellite surfaces. The results indicate that in the pyramidal configuration, the decrease in the temperature of the satellite wall surfaces is influenced by two parameters: fluid angular velocity and orbital period of satellite, but in the critical conditions, the 3-axis configuration can carry out this temperature management more quickly.

کلیدواژه‌ها [English]

  • FMC Actuator
  • numerical simulation
  • Pyramidal and 3-Axis Configuration
  • Temperature Management
  • Fluid Angular Velocity
  • SIMPLE Method
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