تحقیقات موتور

تحقیقات موتور

بررسی عملکرد دستگاه چرخش‌سنج پارویی با استفاده از شبیه‏‌سازی عددی و آزمایش تجربی

نوع مقاله : مقاله پژوهشی

نویسندگان
دانشکده مهندسی مکانیک، دانشگاه صنعتی اراک، اراک، ایران
چکیده
با توجه به اهمیت و تاثیر جریان‌های چرخشی داخل استوانه بر عملکرد موتورهای احتراق داخلی و تأثیر مستقیم این جریان‌ها بر کاهش مقدار انتشار گازهای گلخانه‌ای و کاهش مصرف سوخت، بررسی ویژگی‌های این جریان‌ها ضروری است. بنابراین موضوع حصول اطمینان از عملکرد دستگاه‌های چرخش‌سنج و صحت نتایج بدست آمده از اندازه‌‏گیری ضروری می‏‌شود. با توجه به عدم وجود مرجع مشخص و استاندارد و احتمال از دست رفتن عملکرد مطلوب دستگاه گرداب‌سنج در طول زمان، وجود روش و وسیله‌‏ای برای تأیید و تنظیم آن ضروری است. مطالعه حاضر به منظور اعتبارسنجی عملکرد دستگاه چرخش‌سنج پارویی و طراحی روشی جدید و آسان برای تنظیم آن انجام شد. نتایج شبیه‏‌سازی انجام شده به روش خانه‌‏بندی دینامیکی بسیار نزدیک به نتایج به دست آمده از آزمایش تجربی است و از دقت قوی برخوردار است، زیرا به طور مستقیم عملکرد دستگاه چرخش‌سنج پارویی را شبیه‏‌سازی می‏‌کند، اما از طرف دیگر نیاز به یک هزینه محاسباتی گران است. با توجه به نتایج به‌دست‌آمده از حل عددی و آزمایش تجربی، استفاده همزمان از تجهیزات تنظیم به همراه وابستگی همبستگی به عنوان یک روش سریع و با دقت قوی پیشنهاد می‌شود.
کلیدواژه‌ها

عنوان مقاله English

Verification of the performance of the paddle wheel swirl meter using numerical ‎simulation and experimental test

نویسندگان English

Mahdi Hosseini
Abolfazl Mohammadebrahim
Mechanical Engineering Department, Arak University of Technology, Arak, Iran
چکیده English

Considering the importance and the effect of the rotating flows inside the cylinder on the performance of internal combustion engines and the direct effect of these flows on reducing the amount of greenhouse gas emissions and reducing fuel consumption, it is essential to investigate the characteristics of these flows. Therefore, the issue of ensuring the performance of the swirl meters and the accuracy of the results obtained from the measurement becomes essential. Due to the lack of a specific and standard reference and the loss of performance of the swirl meter over time, it is necessary to have a method and means for its verification and calibration. The present study was carried out to validate the performance of the paddle wheel swirl meter and design a new and easy method for its calibration. The results simulation performed by the dynamic mesh method are very close to the results obtained from the experimental test and have high accuracy, because it directly simulates the performance of the paddle wheel swirl meter, but on the other hand, it requires a very high computational cost. According to the results obtained from the numerical solution and experimental test, the simultaneous use of the calibration equipment along with the correlation relationship is suggested as a fast and high-precision method.

کلیدواژه‌ها English

Rotational Flow
Paddlewheel Swirl Meter
Impulse Torque Swirl Meter
Flow Bench
Calibration
[1] Kaplan M. Influence of swirl, tumble, and squish flows on combustion characteristics and emissions in internal combustion engine-review. International Journal of Automotive Engineering and Technologies. 2019 Sep 9;8(2):83-102. doi: 10.18245/ijaet.558258
[2] K. P. Yadav, A. R. Shaha, Design of Test Rig for Swirl Measurement in IC Engine. International Journal for Scientific Research & Development. 2017 Dec   4;5(1):1-14.
[3] Bari S, Saad I. Performance and emissions of a compression ignition (CI) engine run with biodiesel using guide vanes at varied vane angles. Fuel. 2015 Mar 1;143:217-28. doi: 10.1016/j.fuel.2014.11.050
[4] Cui B, Lü Z, Chen D, Chen K, Huang D. Influence of incident angle of swirler on performance of swirl meter. Transactions of the Chinese Society of Agricultural Engineering. 2015 Jan 1;31(2):53-8.
[5] Yang X, Kuo TW, Guralp O, Grover Jr RO, Najt P. In-Cylinder Flow Correlations between steady flow bench and motored engine using computational fluid dynamics. Journal of Engineering for Gas Turbines and Power. 2017 Jul 1;139(7):072802. doi: 10.1115/1.4035627
[6] da Costa RB, Braga RM, Gomes Júnior CA, Valle RM, Huebner R. PIV measurements and numerical analysis of in-cylinder tumble flow in a motored engine. journal of the Brazilian Society of Mechanical Sciences and Engineering. 2017 Oct;39:3931-45. doi: 10.1007/s40430-017-0878-6
[7] Hong CW, Tarng SD. In-cylinder tumble flow field measurements and predictions. J. Eng. Gas Turbines Power. 2001 Jan 1;123(1):139-45. doi: 10.1115/1.1335479
[8] El-Adawy M, Heikal MR, Aziz AR, Siddiqui MI, Wahhab HA. Experimental study on an IC engine in-cylinder flow using different steady-state flow benches. Alexandria Engineering Journal. 2017 Dec 1;56(4):727-36. doi: 10.1016/j.aej.2017.08.015
[9] Wahono B, Jwa K, Lim O. A study on in-cylinder flow of small engine using steady-state flow benches. Energy Procedia. 2019 Feb 1;158:1856-62. doi: 10.1016/j.egypro.2019.01.432
[10] Jamil A, Baharom MB, Aziz AR. IC engine in-cylinder cold-flow analysis–A critical review. Alexandria Engineering Journal. 2021 Jun 1;60(3):2921-45. doi: 10.1016/j.aej.2021.01.040
[11] Ikpe AE, Owunna IB, John PO. Port Flow Simulation and In-cylinder Swirl Motion Characteristic Effects in Internal Combustion Engine Duty Cycle. Applications of Modelling and Simulation. 2021 Mar 20;5:102-14.
[12] Masi M, Artico L, Gobbato P. Study on the reliability of paddle-wheel tumble flow meters for high-speed engines. InAIP Conference Proceedings 2019 Dec 17 (Vol. 2191, No. 1). AIP Publishing. doi: 10.1063/1.5138841
[13] Zhao F, Ruan Z, Yue Z, Hung DL, Som S, Xu M. Time-sequenced flow field prediction in an optical spark-ignition direct-injection engine using bidirectional recurrent neural network (bi-RNN) with long short-term memory. Applied Thermal Engineering. 2020 Jun 5;173:115253. doi: 10.1016/j.applthermaleng.2020.115253
[14] Heim DM, Ghandhi JB. Investigation of swirl meter performance. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 2011 Aug;225(8):1067-77. doi: 10.1177/0954407011404763
[15] Stone C, Ladommatos N. The measurement and analysis of swirl in steady flow. SAE transactions. 1992 Jan 1:1674-90.
[16] Crnojevic C, Decool F, Florent P. Swirl measurements in a motor cylinder. Experiments in fluids. 1999 May;26(6):542-8. doi: 10.1007/s003480050321
[17] Rusli IH, Aleksandrova S, Medina H, Benjamin SF. Using single-sensor hot-wire anemometry for velocity measurements in confined swirling flows. Measurement. 2018 Dec 1;129:277-80. doi: 10.1016/j.measurement.2018.07.024
[18] Oghabneshin Y, Seddighi S, Zabetian M, Mohammadebrahim A. Experimental and numerical analysis of the in-cylinder swirl flow dependence on the pressure. Heat and mass transfer. 2018 Dec;54:3547-58. doi: 10.1007/s00231-018-2384-5
[19] Mohammadebrahim A, Shafiei B, Kazemzadeh Hannani S. Numerical simulation of in-cylinder tumble flow field measurements and comparison to experimental results. Engine Research. 2022 Nov 27;26(26):11-9.
[20] Wahono B, Setiawan A, Lim O. Experimental study and numerical simulation on in-cylinder flow of small motorcycle engine. Applied energy. 2019 Dec 1;255:113863. doi: 10.1016/j.apenergy.2019.113863
[21] Mohammadebrahim A. Investigation of the in-cylinder swirl flow measurement methods and comparison between them in a cylinder head. Engine Research. 2022 Nov 27;42(42):51-8.
دوره 70، شماره 4 - شماره پیاپی 73
مقالات انگلیسی
زمستان 1402
صفحه 40-55

  • تاریخ دریافت 09 فروردین 1403
  • تاریخ بازنگری 20 فروردین 1403
  • تاریخ پذیرش 02 اردیبهشت 1403