Experimental Investigation of Effect of Winglets on the Aerodynamic Performance of a Mini UAV

مطالعه‌ی عددی و تجربی بال ترکیبی با شبکه‌ یی از بالک‌ها در جریان‌های رینولدز پایین

“…"""=@ |@}mQD p=@ |@ QHD w |OOa |xar=]t |@}mQD '?Qwt |=ywor= |= Q@ ? }DQD x@ =ylr=@ R= l} Qy |= Q@ |OQmrta u=tOv= Q xm w O=Sv|QO=v '2020 p=U QO [21] "CU= xDi=} V}=Ri= Q=}at p=@ x@ C@Uv Q=Oh=mW w u=}QH |m}t=v}OwQ; OQmrta Q@ hrDNt lr=@ `wv xU Q}F -=D |OOa |UQQ@ u= Q=mty |@}mQD |=ylr=@ |= Q@ xm OvOQm xOy=Wt =yv; "OvOQm |UQQ@ = Q u}}=B ROrwv}Q OOa QO OYQO 10 lr=@ uwO@ p=@ x@ C@Uv |m}t=v}OwQ; OQmrta u}ov=}t Qw] x@ '|}xQB w |xDUy CQOk Vy=m Q@ |}=RUx@ Q}F -=D xN=WlD lr=@ 'u}vJty w xDW=O V}=Ri= Q@ =ylr=@ Q}F -=D 'u= Q=mty w 20 xOvBWO '2021 p=U QO [22] "OQ=O =yx@=OQo |RmQt QO |ak=w R=wQB w O=@ pvwD uwtR; s=Hv= =@ = Q O=ByB l} |m}t=v}OwQ; OQmrta |wQ u=O}t |=yxYNWt lQO |= Q@ =yv; "OvOQm |UQQ@ Q= Ry 200 R= QDtm ROrwv}Q O=Oa= lr=@ OwHw =@ 21 |B wmUw} QDU= C= QP Q} wYD |HvUCaQU VwQ R= p=@ lwv u=}QH 10 =UB x@ ; Q@ C@Uv xm OvO=O u=Wv |} wQ}v uwtR; s=Hv= =@ 'u}vJty "OvOQm xO=iDU= R=wQB Cr=L QO R}v w xDi=} V}=Ri= lr=@ uwO@ p=@ Cr=L x@ C@Uv OYQO 12 =D Oy=wN |aU VywSB u}= QO [23] "CU= xDW=O |OQmrta Ow@y@ OYQO 15 |ak=w s=v =@ =ylr=@ |xO=wv=N R= |Y=N |xvwo |@ QHD w |OOa OQm}wQ R= xO=iDU= =@ OW |UQQ@ u}}=B ROrwv}Q O=Oa= QO u; Q}F -=D w OQ}o Q= Qk j}kLD OQwt |}xm@W lr=@ Vy=m |xOy=Wt w =ylr=@ R= |}xm@W Q=mwR=U CN=vW VywSB u}= R= hOy "OwW nQR@ |=yx@=OQo uOW xDUUo |x]U=w x@ xm CU= |}=kr= |=UB |x_Lqt p@=k "OwW|t s=Hv= QDh}a[ |=yx@=OQo O}rwD w p=@ lwv xrUt K} QWD "2 ROrwv}Q O=Oa= QO u; Q}F -=D |UQQ@ w =ylr=@ R= |}xm@W |wQ RmQtD 'VywSB u}= QO |xUOvy "CU= xOW T=@Dk= ?=ka Q}_v |v=oOvQB p=@ lwv R= , =U=U= xm CU= u}}=B |= Q=O , =@r=e w lJwm w lR=v Q=}U@ |=yp=@ R= |}xawtHt CQwY x@ lr=@ `wv u}= w pDv=QB |= R; Q@ \N |x}Q_v R= x}rw= |xUOvy |L=Q] |= Q@ "CU= uQ=kDt p} wiQ}= 'VywSB u}= QO "CU= xOW xO=iDU= ' [23] u= Q=mty w TB}r}i \UwD xOW x=Q= \@=wQ =@ p=@ `]kt |= Q@ 2412 =m =v p} wiQ}= w lr=@ `]kt |= Q@ 0012 =m =v p} wiQ}= R= "CU= xOW xO=iDU= 1 pwOH QO GQOvt |UOvy C=YNWt "CU= xDiQo Q= Qk xHwD OQwt R}v =ylr=@ Vv}J QO Q=PoQ}F -=D |=yQDt= Q=B u}vJty R}v |HvUC}U=UL u=ty =} |}=kr= |=UB Q@ Q_v OQwt QDt=Q=B C= Q}}eD Q}F -=D u= R}t OQwt ' [24] u= Q=mty w TDm C=ar=]t \UwD xOW x=Q= G}=Dv x@ xHwD =@ w xOW |UQQ@ |xOwOLt ' [26] u= Q=mty w |r G}=Dv x@ xHwD =@ xt=O= QO "CU= xDiQo Q= Qk |@=} RQ= Cq=L xt=O= QO "CU= xDiQo Q= Qk p}rLD OQwt |Diy |x}w= R |= Q@ xv}y@ w `}Uw xO=O u=Wv 2 pwOH QO |Diy |x}w= R w = QoTB |x}w= R Q_v R= lr=@ Vv}J hrDNt "CU= xOW xv}W}@ w 0/357 =@ Q@=Q@ xv}y@ |oOvwWl} Q=@ C@Uv 'OwW|t xOy=Wt xm u=vJ "CU= xHQO 4/104 =@ Q@=Q@ lr=@ Qy lwv QO VJ}B |x}w= R [25] "`HQt p=@ xUOvy C=YNWt "1 pwOH 2412 =m =v p}wiQ}= p} wiQ}= 100 cm p=@ |xv=yO pw] 10 cm p=@ `]kt QDw pw] 10 |Q_vt C@Uv "OwW|t ; Q@ Q=Okt w ; Q@ |vLvt ? }W Ow@y@ Ea=@ `HQt p=@ x@ C@Uv lr=@ =@ x= Qty |=yx@=OQo x@ w xOW xDUUo |rY= x@=OQo '=ylr=@ |Diy |x}w= R V}=Ri= =@ 'u}vJty |WywSB QO "OwW|t VRwwQi QF= h}a[D x@ QHvt OwN xm OwW|t s}UkD QDlJwm Q@ lr=@ hrDNt |=yV}= Q; R= OwN |@ QHD |xar=]t QO u= Q=mty w 5 IwQq 'Qo}O u=Wv 6 lv=t -pDv=QB |]N |wor= R= xO=iDU= =@ =OD@= QO "OvOQm xO=iDU= p=@ |wQ |WywSB QO '=t= [12] "O@=}|t Vy=m R}v OYQO 50 OwOL =D |}=kr= |=UB xm OvO=O |}xm@W |=ylr=@ R= xO=iDU= xm OvOQm xOy=Wt '|@QHD OQm}wQ R= xO=iDU= =@ Qo}O |wor= x@ C@Uv = Q |}=kr= |=UB 7 ?Qwt |=DU= Q QO w |R=wt lr=@ wO R= smCUO lwv |=yx@=OQo O=O u=Wv 8 =vwr=D=m '2005 p=U QO [13] "Ovm|t QDtm lv=t pDv=QB u=wD|t 'u; u=}QH CyH Q}}eD R}v w l}t=v}OwQ}= lJwm |= RH= R= xO=iDU= =@ = Q p=@…”

“…' [23] TB}r}i \UwD xOW x=Q= pL u}vJty w u=}QH Q@ sm =L |xrO=at x@ xHwD =@ %R= Ow@ Oy=wN CQ=@a p=@ VJ}B Q=Okt ?ULQ@ |}=kr= |=UB ?} Q[ `@=D Q=Okt…”

“…|xrO=at x@ xHwD =@ "CU= p=@ pw] QO VJ}B u= R}t u} QDW}@ 'x]@= Q u}= QO xm % [23] =@ CU= Q@=Q@ |oOvwWl} Q=@ C@Uv uwO@ lr=@ |= Q@ xv}y@ Q=Okt 'pY=L…”