مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

بررسی عددی تاثیر مکان پله‌ی عرضی بر رفتار هیدرودینامیکی و پایداری طولی شناور دو بدنه پروازی در آب آرام

نوع مقاله : پژوهشی اصیل

نویسندگان
علی ابراهیمی 1
روزبه شفقت 2
مهدی یوسفی فرد 3
علی حاجی آبادی 4
1 دانشجوی کارشناسی ارشد مهندسی دریا، گروه پژوهشی انرژی‌های دریاپایه، دانشگاه صنعتی نوشیروانی بابل، ایران
2 استاد مهندسی مکانیک، گروه پژوهشی انرژی‌های دریاپایه، دانشگاه صنعتی نوشیروانی بابل، ایران
3 استادیار مهندسی مکانیک، گروه پژوهشی انرژی‌های دریاپایه، دانشگاه صنعتی نوشیروانی بابل، ایران
4 کارشناس ارشد مهندسی مکانیک، گروه پژوهشی انرژی‌های دریاپایه، دانشگاه صنعتی نوشیروانی بابل، ایران
10.52547/mme.23.1.11
چکیده
در پژوهش حاضر تاثیر مکان پله‌های عرضی بر مولفه‌های هیدرودینامیکی و پایداری طولی شناور بررسی شده است. شناور مورد بررسی در این تحقیق یک شناور دو بدنه پروازی است که هر نیم بدنه آن دارای دو پله‌ی عرضی می‌باشد. در ابتدا با استفاده از روش آزمایشگاهی مقاومت شناور با وزن 3/5 کیلوگرم در محدود‌ه‌ی عدد فرود طولی 49/0 تا 9/2 در آب آرام محاسبه شده است. سپس با استفاده از روش عددی رفتار شناور در وزن‌های 3/5، 6/4 و 4 کیلوگرم ارزیابی گردیده است. نتایج شبیه‌سازی عددی با نتایج مشابه آزمایشگاهی اعتبار سنجی شده است. شناور در وزن‌های 4 و 3/5 کیلوگرم به ترتیب در اعداد فرود بزرگتر از 43/2 و 9/2 دچار ناپایداری پورپویزینگ گردیده است. به منظور بهبود پایداری طولی شناور از طرح آزمایش تاگوچی برای تعیین مکان بهینه‌ی پله‌های عرضی استفاده شده است. نتایج نشان داد که با قرار گیری پله‌های عرضی در مکان بهینه، ناپایداری پورپویزینگ در شناور رفع شده است. در حالت پروازی مقاومت شناور در حالت بهینه‌ی پله‌های عرضی نسبت به حالت اولیه برای وزن‌های ذکر شده به ترتیب 12، 5/9 و 6/6 درصد کاهش یافته است. در شرایط مشابه نیروی برا وارد بر شناور نیز برای وزن‌های مذکور به ترتیب 15، 10 و 7 درصد افزایش یافته است.
کلیدواژه‌ها
شناور دو بدنه پروازی
روش عددی
ناپایداری پورپویزینگ
آزمایش تاگوچی
پله‌ی عرضی

موضوعات

عنوان مقاله English

Numerical investigation of the effect of transverse step location on hydrodynamic behavior and longitudinal stability of planing catamaran in calm water

نویسندگان English

Ali Ebrahimi 1
Rouzbeh Shafaghat 2
Mahdi Yousefifard 3
Ali Haji Abadi 4
1 MSc. Student, Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran
2 Professor, Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran
3 Assistant Professor, Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran
4 MSc, Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Iran
چکیده English

In this study, the effect of transverse steps location on hydrodynamic components and the longitudinal stability of the vessel has been investigated. The vessel studied in this research is a planning catamaran, each demi-hull with two transverse steps. At first, vessel resistance with a weight of 5.3 kg within a range of length Froude number of 0.49 to 2.9 in calm water has been calculated. Then, craft behavior was evaluated at displacements of 5.3, 4.6, and 4 Kg using the numerical method. The numerical simulation results have been validated with similar experimental results. The craft in 4 and 5.3 kg weights, in Froude numbers greater than 2.43 and 2.9, respectively, has a Porpoising instability. In order to improve the longitudinal stability of the vessel, the Taguchi test design has been used to determine the optimal location of the transverse steps. The results showed that by placing the transverse steps in the optimum location, the Porpoising instability in the vessel has been resolved. In planing mode, vessel resistance decreased by 12%, 9.5%, and 6.6% in the optimum state of transverse steps compared to the base state for the mentioned weights. In similar conditions, the lift force on the vessel increased by 15, 10, and 7 percent for the mentioned weights, respectively.

کلیدواژه‌ها English

Planning catamaran
Numerical method
Taguchi test
Porpoising instability
Transverse steps
Masumi Y, Nikseresht AH. Comparison of numerical solution and semi-empirical formulas to predict the effects of important design parameters on porpoising region of a planing vessel. Applied Ocean Research. 2017;68:228-36. [DOI:10.1016/j.apor.2017.09.002]
Masumi Y, Nikseresht AH. Comparison of numerical solution and semi-empirical formulas to predict the effects of important design parameters on porpoising region of a planing vessel. Applied Ocean Research. 2017;68:228-36. [DOI:10.1016/j.apor.2017.09.002]
Savitsky D. Hydrodynamic design of planing hulls. Marine Technology and SNAME News. 1964;1(04):71-95. [DOI:10.5957/mt1.1964.1.4.71]
Savitsky D. Hydrodynamic design of planing hulls. Marine Technology and SNAME News. 1964;1(04):71-95. [DOI:10.5957/mt1.1964.1.4.71]
Katayama T, editor Experimental techniques to assess dynamic instability of high-speed planing craft-Non-zero heel, bow-diving, porpoising and transverse porpoising. Proceedings of 6th International Ship Stability Workshop, Jersey City, NJ: The Society of Naval Architects and Marine Engineers; 2002: Citeseer.
Katayama T, editor Experimental techniques to assess dynamic instability of high-speed planing craft-Non-zero heel, bow-diving, porpoising and transverse porpoising. Proceedings of 6th International Ship Stability Workshop, Jersey City, NJ: The Society of Naval Architects and Marine Engineers; 2002: Citeseer.
Martin M. Theoretical determination of porpoising instability of high-speed planing boats. Journal of ship research. 1978;22(01):32-53. [DOI:10.5957/jsr.1978.22.1.32]
Martin M. Theoretical determination of porpoising instability of high-speed planing boats. Journal of ship research. 1978;22(01):32-53. [DOI:10.5957/jsr.1978.22.1.32]
Sun H, Faltinsen OM. Predictions of porpoising inception for planing vessels. Journal of marine science and technology. 2011;16(3):270-82. [DOI:10.1007/s00773-011-0125-2]
Sun H, Faltinsen OM. Predictions of porpoising inception for planing vessels. Journal of marine science and technology. 2011;16(3):270-82. [DOI:10.1007/s00773-011-0125-2]
John R. Dawson RM, and Elizabeth S. Hay. Effect of varying depth of step, angle of after body kell, length of after body chine, and Gross load. Lagley Memorial Aeronautical Laboratory Langley Field, VA;. July 1946.
John R. Dawson RM, and Elizabeth S. Hay. Effect of varying depth of step, angle of after body kell, length of after body chine, and Gross load. Lagley Memorial Aeronautical Laboratory Langley Field, VA;. July 1946.
Blount DL, Codega LT. Dynamic stability of planing boats. Marine Technology and SNAME news. 1992;29(01):4-12. [DOI:10.5957/mt1.1992.29.1.4]
Blount DL, Codega LT. Dynamic stability of planing boats. Marine Technology and SNAME news. 1992;29(01):4-12. [DOI:10.5957/mt1.1992.29.1.4]
Veysi STG, Bakhtiari M, Ghassemi H, Ghiasi M. Toward numerical modeling of the stepped and non-stepped planing hull. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2015;37(6):1635-45. [DOI:10.1007/s40430-014-0266-4]
Veysi STG, Bakhtiari M, Ghassemi H, Ghiasi M. Toward numerical modeling of the stepped and non-stepped planing hull. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2015;37(6):1635-45. [DOI:10.1007/s40430-014-0266-4]
Nourghasemi H, Bakhtiari M, Ghassemi H. Numerical study of step forward swept angle effects on the hydrodynamic performance of a planing hull. Zeszyty Naukowe Akademii Morskiej w Szczecinie. 2017.
Nourghasemi H, Bakhtiari M, Ghassemi H. Numerical study of step forward swept angle effects on the hydrodynamic performance of a planing hull. Zeszyty Naukowe Akademii Morskiej w Szczecinie. 2017.
Cucinotta F, Guglielmino E, Sfravara F. A critical CAE analysis of the bottom shape of a multi stepped air cavity planing hull. Applied Ocean Research. 2019;82:130-42. [DOI:10.1016/j.apor.2018.11.003]
Cucinotta F, Guglielmino E, Sfravara F. A critical CAE analysis of the bottom shape of a multi stepped air cavity planing hull. Applied Ocean Research. 2019;82:130-42. [DOI:10.1016/j.apor.2018.11.003]
Di Caterino F, Niazmand Bilandi R, Mancini S, Dashtimanesh A, De Carlini M. A numerical way for a stepped planing hull design and optimization. Technology and Science for the Ships of the Future: IOS Press; 2018. p. 220-9.
Di Caterino F, Niazmand Bilandi R, Mancini S, Dashtimanesh A, De Carlini M. A numerical way for a stepped planing hull design and optimization. Technology and Science for the Ships of the Future: IOS Press; 2018. p. 220-9.
Najafi A, Nowruzi H, Karami M, Javanmardi H. Experimental investigation of the wetted surfaces of stepped planing hulls. Ocean Engineering. 2019;187:106164. [DOI:10.1016/j.oceaneng.2019.106164]
Najafi A, Nowruzi H, Karami M, Javanmardi H. Experimental investigation of the wetted surfaces of stepped planing hulls. Ocean Engineering. 2019;187:106164. [DOI:10.1016/j.oceaneng.2019.106164]
Ghadimi P, Panahi S, Tavakoli S. Hydrodynamic study of a double-stepped planing craft through numerical simulations. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2019;41(1):1-15.
https://doi.org/10.1007/s40430-018-1505-x [DOI:10.1007/s40430-018-1501-1]
Ghadimi P, Panahi S, Tavakoli S. Hydrodynamic study of a double-stepped planing craft through numerical simulations. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2019;41(1):1-15.
https://doi.org/10.1007/s40430-018-1505-x [DOI:10.1007/s40430-018-1501-1]
Sajedi SM, Ghadimi P. Experimental investigation of the effect of two steps on the performance and longitudinal stability of a mono-hull high-speed craft. Cogent Engineering. 2020;7(1):1790980. [DOI:10.1080/23311916.2020.1790980]
Sajedi SM, Ghadimi P. Experimental investigation of the effect of two steps on the performance and longitudinal stability of a mono-hull high-speed craft. Cogent Engineering. 2020;7(1):1790980. [DOI:10.1080/23311916.2020.1790980]
Sajedi SM, Ghadimi P. Experimental and numerical investigation of stepped planing hulls in finding an optimized step location and analysis of its porpoising phenomenon. Mathematical Problems in Engineering. 2020. [DOI:10.1155/2020/3580491]
Sajedi SM, Ghadimi P. Experimental and numerical investigation of stepped planing hulls in finding an optimized step location and analysis of its porpoising phenomenon. Mathematical Problems in Engineering. 2020. [DOI:10.1155/2020/3580491]
https://ittc.info/members/member-organisations/national-iranian-marine-laboratory-nimala/.
https://ittc.info/members/member-organisations/national-iranian-marine-laboratory-nimala/.
Propulsion Committee. Final report and recommendations to the 23rd, ITTC, Proceeding of Twenty-third ITTC,. (2002).
Propulsion Committee. Final report and recommendations to the 23rd, ITTC, Proceeding of Twenty-third ITTC,. (2002).
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 7.5-02-02- 02. 75-02-02-022014.
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 7.5-02-02- 02. 75-02-02-022014.
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 7.5-02-02- 02. 2017.
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 7.5-02-02- 02. 2017.
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 75-02-02-022011.
ITTC. , Recommended Procedures. General Guideline for Uncertainty Analysis in Resistance Tests. 75-02-02-022011.
Bi X, Zhuang J, Su Y. Seakeeping Analysis of Planing Craft under Large Wave Height. Water. 2020;12(4):1020. [DOI:10.3390/w12041020]
Bi X, Zhuang J, Su Y. Seakeeping Analysis of Planing Craft under Large Wave Height. Water. 2020;12(4):1020. [DOI:10.3390/w12041020]
ITTC. Recommended procedures and guidelines. 75-03-02-03 2014b. [DOI:10.1055/s-0035-1547024]
ITTC. Recommended procedures and guidelines. 75-03-02-03 2014b. [DOI:10.1055/s-0035-1547024]
ITTC. Practical guidelines for ship CFD applications. (75-03-02-03) Revision-01. 2011.
ITTC. Practical guidelines for ship CFD applications. (75-03-02-03) Revision-01. 2011.
Suneela J, Krishnankutty P, Subramanian VA. Hydrodynamic performance of planing craft with interceptor-flap hybrid combination. Journal of Ocean Engineering and Marine Energy. 2021;7(4):421-38. [DOI:10.1007/s40722-021-00211-0]
Suneela J, Krishnankutty P, Subramanian VA. Hydrodynamic performance of planing craft with interceptor-flap hybrid combination. Journal of Ocean Engineering and Marine Energy. 2021;7(4):421-38. [DOI:10.1007/s40722-021-00211-0]
Carrica PM, Wilson RV, Noack RW, Stern F. Ship motions using single-phase level set with dynamic overset grids. Computers & fluids. 2007;36(9):1415-33. [DOI:10.1016/j.compfluid.2007.01.007]
Carrica PM, Wilson RV, Noack RW, Stern F. Ship motions using single-phase level set with dynamic overset grids. Computers & fluids. 2007;36(9):1415-33. [DOI:10.1016/j.compfluid.2007.01.007]
Begovic E, Bertorello C, Mancini S. Hydrodynamic performances of small size swath craft. Brodogradnja: Teorija i praksa brodogradnje i pomorske tehnike. 2015;66(4):1-22.
Begovic E, Bertorello C, Mancini S. Hydrodynamic performances of small size swath craft. Brodogradnja: Teorija i praksa brodogradnje i pomorske tehnike. 2015;66(4):1-22.
ITTC. Practical guidelines for ship CFD applications (75-03-02-03)p 1-20Revision-01. 2014.
ITTC. Practical guidelines for ship CFD applications (75-03-02-03)p 1-20Revision-01. 2014.
Diakoulaki D, Mavrotas G, Papayannakis L. Determining objective weights in multiple criteria problems: The critic method. Computers & Operations Research. 1995;22(7):763-70. [DOI:10.1016/0305-0548(94)00059-H]
Diakoulaki D, Mavrotas G, Papayannakis L. Determining objective weights in multiple criteria problems: The critic method. Computers & Operations Research. 1995;22(7):763-70. [DOI:10.1016/0305-0548(94)00059-H]
مهندسی مکانیک مدرس
دوره 23، شماره 1
دی 1401
صفحه 11-24