Department of Mathematics and Physical Sciences
http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/4778
Sun, 02 Oct 2022 06:42:40 GMT2022-10-02T06:42:40ZEffect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/4905
Effect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
Amenya, Rogers Omboga; Sigey, Johanna Kibet; Maloiy, Geoffrey Moriaso Ole; Theuri, David Mwangi
The study investigated the effect of the angular position of the head on the
blood flow in the jugular vein of giraffes. The vein considered is elastic and
collapsible such that its cross-sectional area is not uniform. Transmural pressure causes the blood to move along the vein. Mathematical equations describing the flow were developed, and the vein was considered to be inclined
at an angle φ to the horizontal. A finite-difference scheme was used to solve
the equations of motion for the flow. The results are presented via relevant
tables and plots. Our findings show that a change in the position of the head
causes variation in the external pressure, which in turn causes variation in the
cross-sectional area of the vein. Moreover, a drop (or increase) in the inertial
pressure of the blood may cause the vein to collapse (or distend), which again
triggers a change in the pressure
Sun, 01 Aug 2021 00:00:00 GMThttp://repository.dkut.ac.ke:8080/xmlui/handle/123456789/49052021-08-01T00:00:00ZEffect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/4869
Effect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
Amenya, Rogers Omboga; Sigey, Johanna Kibet; Maloiy, Geoffrey Moriaso Ole; Theuri, David Mwangi
The study investigated the effect of the angular position of the head on the
blood flow in the jugular vein of giraffes. The vein considered is elastic and
collapsible such that its cross-sectional area is not uniform. Transmural pres-
sure causes the blood to move along the vein. Mathematical equations de-
scribing the flow were developed, and the vein was considered to be inclined
at an angle φ to the horizontal. A finite-difference scheme was used to solve
the equations of motion for the flow. The results are presented via relevant
tables and plots. Our findings show that a change in the position of the head
causes variation in the external pressure, which in turn causes variation in the
cross-sectional area of the vein. Moreover, a drop (or increase) in the inertial
pressure of the blood may cause the vein to collapse (or distend), which again
triggers a change in the pressure.
Tue, 31 Aug 2021 00:00:00 GMThttp://repository.dkut.ac.ke:8080/xmlui/handle/123456789/48692021-08-31T00:00:00ZUnsteady Viscous Dissipative Flow of Salty Water in the Presence of a Magnetic Field in a Semi-Infinite Porous Medium
http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/4867
Unsteady Viscous Dissipative Flow of Salty Water in the Presence of a Magnetic Field in a Semi-Infinite Porous Medium
Nyabuto, Ronald; Amenya, Rogers Omboga; Okelo, Jeconniah Abonyo
In this paper, an investigation of unsteady free convective magneto-hydro
dynamic (MHD) flow of salty water in the presence of a transverse magnetic
field has been carried out. An electrically conducting and incompressible flu-
id is assumed to flow past a semi-infinite vertical porous plate. A constant
magnetic field is applied normally to the vertical plate. The Prandtl numbers
for salt water are taken to be 1 at 20 ̊C. The governing equations of the prob-
lem contain non-linear partial differential equations that are transformed into
ordinary differential equations. An explicit finite difference scheme has been
used to solve the transformed ordinary equations generated from this flow
problem. The velocity profiles and temperature distribution of the flow field
have been discussed and presented graphically.; In this paper, an investigation of unsteady free convective magneto-hydro
dynamic (MHD) flow of salty water in the presence of a transverse magnetic
field has been carried out. An electrically conducting and incompressible flu-
id is assumed to flow past a semi-infinite vertical porous plate. A constant
magnetic field is applied normally to the vertical plate. The Prandtl numbers
for salt water are taken to be 1 at 20 ̊C. The governing equations of the prob-
lem contain non-linear partial differential equations that are transformed into
ordinary differential equations. An explicit finite difference scheme has been
used to solve the transformed ordinary equations generated from this flow
problem. The velocity profiles and temperature distribution of the flow field
have been discussed and presented graphically.
Mon, 19 Jul 2021 00:00:00 GMThttp://repository.dkut.ac.ke:8080/xmlui/handle/123456789/48672021-07-19T00:00:00ZEffect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
http://repository.dkut.ac.ke:8080/xmlui/handle/123456789/4863
Effect of Head Position Angles on the Blood Flow in the Jugular Vein of Giraffes
Amenya, Rogers Omboga; Sigey, Johanna Kibet; Maloiy, Geoffrey Moriaso Ole; Theuri, David Mwangi
The study investigated the effect of the angular position of the head on the
blood flow in the jugular vein of giraffes. The vein considered is elastic and
collapsible such that its cross-sectional area is not uniform. Transmural pressure
causes
the
blood
to
move
along
the
vein.
Mathematical
equations
describing
the
flow
were
developed,
and
the
vein
was
considered
to
be
inclined
at
an
angle
φ
to the horizontal. A finite-difference scheme was used to solve
the equations of motion for the flow. The results are presented via relevant
tables and plots. Our findings show that a change in the position of the head
causes variation in the external pressure, which in turn causes variation in the
cross-sectional area of the vein. Moreover, a drop (or increase) in the inertial
pressure of the blood may cause the vein to collapse (or distend), which again
triggers a change in the pressure.
Tue, 31 Aug 2021 00:00:00 GMThttp://repository.dkut.ac.ke:8080/xmlui/handle/123456789/48632021-08-31T00:00:00Z