rogers powerpoint

8/17/2019 Rogers Powerpoint

1/13

Simulation and Analysis of Simulation and Analysis of

Equally Distributed Flow for UseEqually Distributed Flow for Use

in Ultrasonic Atomizationin Ultrasonic Atomization

Lindsay RogersUniversity of Wisconsin, Platteville

Mechanical Engineering

Dr. Chen S. TsaiUniversity of California, IrvineDeart!ent of Electrical Engineering and Co!"ter Science

Dr. Shirley C. TsaiCalifornia State University, Long #each

Deart!ent of Che!ical Engineering

http://www.nsf.gov/crssprgm/reu/list_result.cfm?unitid=10006http://www.nsf.gov/crssprgm/reu/list_result.cfm?unitid=10006http://www.uci.edu/http://www.nsf.gov/crssprgm/reu/list_result.cfm?unitid=10006


2/13

#ac$gro"nd

%lications Medical& P"l!onary Dr"g Delivery

Thin, Even Sray Coating

Material Science MEMS 'a(rication )hotoresist coating*

+anoelectronics )deosition of cond"ctor !aterial*

istory

#"l$ Metal-(ased Ultrasonic +e("lier In$-/et Printer +oles )dro-on-de!and*


3/13

0vervie1 The +ole

'o"rier orn& half-1avelength design andvi(ration a!lit"de !agni2cation of t1o

Constant cross-sectional area of innerchannel er!its cascading horns

+ole olders laced at nodes allo1ingroer vi(ration

3-'o"rier orns

Transd"cer Drive Section

+odal #ar

+ole

older


4/13

Ultrasonic %to!iationMechanis!

Pieoelectric late e4cited,ca"sing the for!ation of astanding longit"dinal1ave thro"gho"t 5"id

Li6"id iss"es fro! nole,creating thin 2l! at ti1ith caillary 1avegenerated on li6"ids"rface

0eration at resonanceca"ses 1ave insta(ilityand (rea$s li6"id intodros "on e7ection

Dro sieuniform


5/13

%dvantages

Can oerate at higher fre6"encies thanconventional "ltrasonic noles 1hilere6"iring less electric drive o1er

S!aller, !ore "nifor! dros Red"ction in overall sie

Integration

%rrays of !"ltile noles Co!(ine ieoelectric late alication 1ith

nole fa(rication rocess


6/13

%rray of +olesIncrease Prod"ction of Monodiserse Drolets


7/13

Manifold

S"ly e6"ally distri("ted5"id 5o1 to each nole

Man"fact"red on sa!e

1afer as nole array 0ti!ie ara!eters

incl"ding&

/"nction %ngles Length of straight sections

and overall length


8/13

Si!"lation %+S8S, 2nite ele!ent soft1are

Utilied rogra! code instead of grahicallydra1ing ro2le for ease of controlling ara!eters


9/13

%nalysis

Proced"re Model a range of channel ro2les (y varying

oti!iation ara!eters

%c6"ire 'EM sol"tions )velocity, ress"re dro*

9ector Plot of 9elocity Conto"r Plot of Press"re


10/13

%nalysis

o1 res"lts interreted 9is"ally st"dy lots )velocity, ress"re*

Mini!ie overall ress"re-dro


11/13

Res"lts

45

90

20 3545 50 60 75 85 90 115

0

20

40

60

80

100

120

Pressure (Pa)

beta (degrees)

alpha (degrees)

Pressure v s Y-Junction Angles of 4 Channe l Array

100-120

80-100

60-80

40-60

20-40

0-20

alpha

beta :; 3< =< ; ?< @< A; BB<

=< B;=.:?A @?.@:= @3.: @;.?;: @;.==3 @B.=A< @:.=: A=.3>:

>< A? ?@.>?> ?=.3@3 ?3.;@= ?B. ?3.:AB @.:: ?;.>>3 >A.B< >@.@A3 >A.A=3 ?;.@>@ @:.@B>

A; A;.?;: ?=.:BB >A.ABA >@.>: >?.B;A >>.@< >?.A;: >@.@:A @;.??=

B;; A;.:? >A.=?> >@.B?? >>.>>> >>.=;? >[email protected]@< @;.33B

BB; A;.A.?= >@.==B >>.A3 >>.>?B >?.?:3 >@.>=@ @;.


12/13

Closing Tho"ghts Silicon-(ased nole

created 1hich rod"ces!onodiserse dros

Manifold of !icro5"idicchannels si!"lated andoti!ied

'"rther 1or$ (eing

cond"cted on channels1ith !ore than t1o(ranch angles andarrays 1hich dont follo1:n attern ):, =, @, B>*


13/13

%c$no1ledge!ents

Professors Chen and Shirley Tsai

rad"ate St"dents +ing Wang

E"gene "ang

+ational Science 'o"ndation

IM-SURE Progra!

Said Sho$air )!a7or ros* .P. Li

oran Mati7asevic

IM-SURE articiants

rogers powerpoint

Documents