Elongational Flow in Melt Spinning of Glass
نویسندگان
چکیده
منابع مشابه
Squeezing and Elongational Flow
1. Squeezing and Elongational Flow in Fluid Foods 2. Foundations of Squeezing Flow Viscometry 2.1. Elongational Flow: Lubricated Squeezing Flow Kinematics 2.2. Shear Flow: Non-lubricated Squeezing Flow Kinematics 3. Parallel Plates Viscometer 3.1. Lubricated Squeezing Flow 3.2. Non-lubricated Squeezing Flow 3.3. Applications 3.4. Shortcomings 3.5. Other Configurations 4. Concluding Remarks and ...
متن کاملOptimal Control of Melt Spinning Processes
An optimal control problem for a mathematical model of a melt spinning process is considered. Newtonian and non–Newtonian models are used to describe the rheology of the polymeric material, the fiber is made of. The extrusion velocity of the polymer at the spinneret as well as the velocity and temperature of the quench air serve as control variables. A constrained optimization problem is derive...
متن کاملChains of magnetic particles in elongational flow
The rheology of a dilute suspension of chains of magnetic particles is being studied in order to elucidate the effect of the dipolar magnetic interactions on the chains’ contribution to the pressure tensor and to the viscosities of the suspension. Depending upon the nature of the elongational flow, the rigid chain-limiting behavior of the pressure tensor as well as that of the elongational, she...
متن کاملElongational-flow-induced scission of DNA nanotubes in laminar flow.
The length distributions of polymer fragments subjected to an elongational-flow-induced scission are profoundly affected by the fluid flow and the polymer bond strengths. In this paper, laminar elongational flow was used to induce chain scission of a series of circumference-programmed DNA nanotubes. The DNA nanotubes served as a model system for semiflexible polymers with tunable bond strength ...
متن کاملSingle polymer dynamics in an elongational flow.
The stretching of individual polymers in a spatially homogeneous velocity gradient was observed through use of fluorescently labeled DNA molecules. The probability distribution of molecular extension was determined as a function of time and strain rate. Although some molecules reached steady state, the average extension did not, even after a approximately 300-fold distortion of the underlying f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan)
سال: 1980
ISSN: 0387-1533
DOI: 10.1678/rheology1973.8.2_60