Yintoni ulwelo non-Newtonian? Imizekelo aze

Yintoni ulwelo non-Newtonian? Imizekelo kufanele kube lula ukubona noba kwifriji yakho, kodwa mzekelo ezicacileyo lamaphepha obugcisa ummangaliso ingqalelo entlabathini - ulwelo aqinileyo ngexesha elinye ngenxa efunyenweyo amasuntswana (imisiwe).

malunga viscosity

Sir Isaak Nyuton wayesithi ukuba viscosity okanye ukuxhathisa flow fluid kuxhomekeke lobushushu. Ngoko ke, umzekelo, amanzi isenokubangela komkhenkce umva uphantsi kweempembelelo ubushushu okanye ukupholisa iziqalelo. Nangona kunjalo, ezinye izinto ezikhoyo ehlabathini, utshintsho viscosity ngenxa zokusetyenziswa kwemikhosi, kunokuba utshintsho obushushu. Okubangel 'umdla kukuba, loo ulwelo non-Newtonian ibizwa kusetyenziswa ngokuqhelekileyo sauce tomato leyo iba ukubhitya yanika sibanga ixesha elide. Cream, icala, izokhula xa enza. Ezi zinto ke kubalulekile ubushushu - viscosity zokufuma utshintsho non-Newtonian ngenxa uvakalelo ngokomzimba.

lokulinga

Kuba abo banomdla kwinzululwazi isicelo, okanye ufuna nje ukubonisa iindwendwe kunye nabahlobo bakho emangalisayo ezilula kodwa okumangalisayo kukuba imifuniselo yezenzululwazi fun wadala iresiphi ekhethekileyo umxube wesitatshi colloidal. Olu lwelo non-Newtonian, izandla ngokoqobo ezenziwe izinto ezimbini yokupheka eqhelekileyo ukubetha ukungaguquguquki yabo besikolo kunye nabafundi. Konke okudingayo starch namanzi acocekileyo, yaye ekugqibeleni bafumane into ekhethekileyo, oko kukuthi zombini ulwelo kunye okuqinileyo.

iresiphi

• Phalaza ngayo ikota le diphu sengqolowa wesitatshi kwisitya ecocekileyo kancinane ugalele malunga nesiqingatha nendebe yamanzi. Govuza. Maxa wambi kuba lula ngakumbi ukulungiselela isisombululo wesitatshi colloidal sokunene.
• Qhubeka ukongeza starch namanzi iinxalenye ezincinane, yonke imihla enidla musa ukufumana into, xa guquki ufana nobusi. Olu lwelo elizayo ezingezo-Newtonian. Indlela yokwenza oko yohlobo olunye xa zonke iinzame kuphelela ukusilela ibangel iyunifomu? Musa Ungakhathazeki; ukunika nje inkqubo ixesha. Ngenxa yoko, omnye iphakheji cornstarch wena uya kuthatha omnye ukuya kwemibini iiglasi zamanzi. Qaphela: le nto iya iba lexinene ngakumbi njengoko kongeza kuyo yonke ngumgubo ngakumbi.
• Galela into leyo ibe epanini okanye baking esityeni. Khangela ukuba texture yayo engaqhelekanga njenge "solid" ulwelo ephalazwe. Xuba zendaba isalathiso isangqa umnwe - kuqala ngokucotha, ngoko ngokukhawuleza yaye ngokukhawuleza, ude asifumani fluid emangalisayo ezingezo-Newtonian.

imifuniselo

Njengoko ngenjongo yokuba ulwazi lwezenzululwazi, kwaye nje ukuba mnandi, ungazama yemifuniselo zilandelayo:

• Swayipa umnwe wakho ngapha phezu lihlwili. Ngaba uqaphele nantoni na?
• Gxila isandla yonke ngoqobo twisiseni bamcenge ukuba iminwe yayo ndaxhwitha ukusuka kwisikhongozeli.
• Zama lokujikelezisa into ezandleni zakhe ngempama ibhola.
• Kusenokwenzeka nokuba ngawo onke amandla akhe ukuze ngempama phezu lihlwili wesundu. Ukubakho ababukeli ngokuqinisekileyo basabele icala, elindele ukuba isisombululo wesitatshi ngoku splattered, kodwa into engaqhelekanga iya kuhlala kwisikhongozeli. (Ngaphandle kokuba, kakade akuyi, uzisole istatshi.)
• Okumangalisayo experiment videoblogery umnikelo. Kuba yena ufuna umhlathi umculo, ekufuneka ngenyameko obtyanut ashinyeneyo urhangqo ukutya kwiiseli ezininzi. Galela isisombululo kwi ifilimu vula umculo etsholo phezulu. Uyakwazi ukubukela imiphumo mihle ezibonwayo kunokwenzeka kuphela ngokusetyenziswa ngale ikhethekileyo.

Ukuba uqhuba ulingelo elabhoratri besikolo okanye abafundi, bacele kutheni ulwelo non-Newtonian eziphatha ngale ndlela. Ngesizathu esithile, kubonakala eqinileyo xa ukumilisa esandleni sakho, kodwa ayajika ngathi isiraphu, ukuba unclench iminwe yakho? Ekupheleni kwencoko yenu ezipakishwe ihlwili engxoweni enkulu yeplastiki uziphu ukuba ayigcine de kube lixesha elilandelayo. Kuya kuba luncedo kuwe ukubonisa iimpawu oluludaka.

Le mfihlelo iziyobisi

Kutheni kwezinye isisombululo iimeko colloidal wesitatshi liziphatha umzimba engqongqo, kunye nezinye - njengoko ulwelo? Enyanisweni, kwafuneka ukudala ulwelo yokwenene non-Newtonian - into, ngokulahla umthetho viscosity.

Newton ingqalelo ukuba viscosity ukwimo kutshintshwe ngenxa ukukhulisa kuphela okanye ukuthoba iqondo lobushushu. Umzekelo, i-oyile injini iqukuqela lula xa itshiswe kwaye olulingana ingakumbi xa zipholile. Ngokwenene, le ulwelo non-Newtonian kuxhomekeke kwakhona kule umthetho wendalo, kodwa viscosity yabo zingatshintshwa kwaye ukusetyenziswa amandla okanye uxinzelelo. Xa buthi ihlwili colloid esandleni sakhe, ukunyuka yayo ukuxinana kakhulu, kwaye (ubuncinane okwethutyana) ngokungathi ajike abe eqinileyo. Xa decompress isisombululo linqindi colloidal yhuu ngathi ulwelo eqhelekileyo.

Le nto ukuba sikhumbule

Indida kukuba akunakwenzeka ukuba ukuxuba istatshi ngamanzi ngonaphakade, ngenxa olu lingelo, wena ufumane into bomzi, nokumiswa. Ekuhambeni kwexesha, amasuntswana umgubo inokuba uxobule ukusuka molekyuli amanzi aya kuhlanganisana ibe yintlama nzima emazantsi engxoweni yeplastiki yakho. Kungenxa yesi sizathu ukuba ulwelo non-Newtonian enjalo nangoko ucingo imibhobho umjelo, ukuba uthatha nje, uwaphalazele esinkini. Xa kungekho tyala musa uwaphalazele phantsi idreyini - ngcono kuphazamiseka engxoweni umphose nje kule udoti.